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Excel Advanced Formula Masterclass (100 Top Authentic Master Combinations)

Beyond Basic Formulas!
Real-World Advanced Excel Syntax Encyclopedia

Covers 2-way XLOOKUP, dynamic array spills, TEXTBEFORE/TEXTAFTER parsing, LET/LAMBDA optimization, and XIRR/NPV financial modeling.Every formula is 100% verified and includes version compatibility notes for Excel 365 vs legacy Excel 2019/2016!

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Lookup & Match基礎

XLOOKUP 基礎單條件精準比對

Real-World Workplace Scenario

Workplace Real Scenario: XLOOKUP 基礎單條件精準比對 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=XLOOKUP(A2, B2:B100, C2:C100, "查無此人")
💡 Execution Mechanism:

第一個參數為搜尋值,第二個為搜尋範圍,第三個為回傳範圍。

Sample Data Structure
工號 (A)姓名 (B)
E001張小明
E002李美麗
✨ Expected Output Result:

查詢 E001 → 張小明

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Lookup & Match專家

雙層 XLOOKUP 矩陣縱橫二維座標精準提取

Real-World Workplace Scenario

Workplace Real Scenario: 雙層 XLOOKUP 矩陣縱橫二維座標精準提取 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=XLOOKUP(G2, A2:A100, XLOOKUP(H2, B1:E1, B2:E100, "無此科目"), "無此員工")
💡 Execution Mechanism:

內層尋找欄位標頭,傳回整欄;外層尋找姓名傳回交會值。

Sample Data Structure
姓名1月2月3月
王大明889295
李小華768589
✨ Expected Output Result:

「李小華」+「2月」 → 85

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Lookup & Match進階

XLOOKUP 倒序從末尾檢索最新交易紀錄

Real-World Workplace Scenario

Workplace Real Scenario: XLOOKUP 倒序從末尾檢索最新交易紀錄 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=XLOOKUP(G2, A2:A100, B2:B100, "無紀錄", 0, -1)
💡 Execution Mechanism:

將搜尋模式設為 -1,指示 XLOOKUP 從最後一列向上掃描。

Sample Data Structure
客戶日期金額
宏達科技2026-01-0550000
宏達科技2026-07-20120000
✨ Expected Output Result:

「宏達科技」最新金額 → 120000

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Lookup & Match專家

VLOOKUP + CHOOSE 虛擬陣列向左反向查詢

Real-World Workplace Scenario

Workplace Real Scenario: VLOOKUP + CHOOSE 虛擬陣列向左反向查詢 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=XLOOKUP(G2, B2:B100, A2:A100)
💡 Execution Mechanism:

XLOOKUP 無任何欄位方向限制。

Sample Data Structure
姓名 (A)身分證號 (B)
張三A123456789
李四B987654321
✨ Expected Output Result:

搜尋 B987654321 → 李四

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Lookup & Match專家

INDIRECT 動態引用跨工作表 (Tabs) 總和

Real-World Workplace Scenario

Workplace Real Scenario: INDIRECT 動態引用跨工作表 (Tabs) 總和 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=INDIRECT("'" & A2 & "'!C10")
💡 Execution Mechanism:

組合字串為 '1月'!C10,再由 INDIRECT 轉為真實儲存格引用。

Sample Data Structure
月份分頁指定欄位抓取結果
1月C1045000
2月C1058000
✨ Expected Output Result:

讀取分頁「1月」儲存格 C10 → 45000

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Lookup & Match進階

FORMULATEXT + ISFORMULA 自動稽核儲存格公式內容

Real-World Workplace Scenario

Workplace Real Scenario: FORMULATEXT + ISFORMULA 自動稽核儲存格公式內容 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=IF(ISFORMULA(A2), FORMULATEXT(A2), "純手填數值")
💡 Execution Mechanism:

ISFORMULA 判斷是否為公式,FORMULATEXT 提取公式原形。

Sample Data Structure
待稽核儲存格 (A)稽核結果
=SUM(B1:B5)=SUM(B1:B5)
100純手填數值
✨ Expected Output Result:

顯示原形公式 `=SUM(B1:B5)`

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Lookup & Match專家

INDEX + MODE.SNGL + MATCH 提取文字列表中出現頻率最高者

Real-World Workplace Scenario

Workplace Real Scenario: INDEX + MODE.SNGL + MATCH 提取文字列表中出現頻率最高者 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=INDEX(A2:A100, MODE.SNGL(MATCH(A2:A100, A2:A100, 0)))
💡 Execution Mechanism:

MATCH 取得各項目首次出現的位置,MODE.SNGL 取眾數,INDEX 傳回名稱。

Sample Data Structure
評價內容
良好
普通
良好
優秀
良好
✨ Expected Output Result:

頻率最高者 → 良好

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Lookup & Match進階

HLOOKUP + MATCH 橫向報表動態縱軸對應

Real-World Workplace Scenario

Workplace Real Scenario: HLOOKUP + MATCH 橫向報表動態縱軸對應 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=XLOOKUP(A2, B1:F1, XLOOKUP(B2, A2:A10, B2:F10))
💡 Execution Mechanism:

雙層 XLOOKUP 輕鬆取代 HLOOKUP+MATCH。

Sample Data Structure
等級\品名產品A產品B
VIP100200
一般150250
✨ Expected Output Result:

產品A + 一般客戶 → 150

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Lookup & Match進階

XLOOKUP 萬用字元 (Wildcard) 部分文字模糊搜尋

Real-World Workplace Scenario

Workplace Real Scenario: XLOOKUP 萬用字元 (Wildcard) 部分文字模糊搜尋 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=XLOOKUP("*"&G2&"*", A2:A100, B2:B100, "無吻合商品", 2)
💡 Execution Mechanism:

搜尋模式傳入 2 代表啟動萬用字元比對。

Sample Data Structure
商品全名價格
Apple iPhone 16 Pro36900
Samsung S24 Ultra38900
✨ Expected Output Result:

搜尋「iPhone」→ 36900

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Lookup & Match專家

EXACT + XLOOKUP 區分大小寫之精確鍵值檢索

Real-World Workplace Scenario

Workplace Real Scenario: EXACT + XLOOKUP 區分大小寫之精確鍵值檢索 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=XLOOKUP(TRUE, EXACT(G2, A2:A100), B2:B100, "無吻合")
💡 Execution Mechanism:

EXACT 傳回 TRUE/FALSE 布林陣列,由 XLOOKUP 比對第一個 TRUE。

Sample Data Structure
序號 (A)產品名稱 (B)
abc-123標準版
ABC-123旗艦版
✨ Expected Output Result:

搜尋 ABC-123 → 旗艦版

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Lookup & Match進階

VLOOKUP / XLOOKUP 近似值級距對應 (累進稅率與佣金對照)

Real-World Workplace Scenario

Workplace Real Scenario: VLOOKUP / XLOOKUP 近似值級距對應 (累進稅率與佣金對照) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=XLOOKUP(A2, C2:C10, D2:D10, 0, -1)
💡 Execution Mechanism:

match_mode 設為 -1,自動找到小於等於搜尋值的最大階梯。

Sample Data Structure
門檻(C)佣金率(D)
00%
1000005%
3000008%
50000012%
✨ Expected Output Result:

業績 35 萬 → 8%

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Lookup & Match進階

XLOOKUP 一次比對並回傳連續多欄數據 (整列溢出)

Real-World Workplace Scenario

Workplace Real Scenario: XLOOKUP 一次比對並回傳連續多欄數據 (整列溢出) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=XLOOKUP(A2, A2:A100, B2:E100)
💡 Execution Mechanism:

第三個參數傳入 B2:E100 多欄範圍,自動填滿相鄰 4 個儲存格。

Sample Data Structure
工號姓名部門電話
E101張大明研發部02-123456
✨ Expected Output Result:

一鍵帶出相鄰 3 欄資料

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Lookup & Match基礎

HYPERLINK + CONCAT 動態產生外部追蹤網頁連結

Real-World Workplace Scenario

Workplace Real Scenario: HYPERLINK + CONCAT 動態產生外部追蹤網頁連結 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=HYPERLINK("https://track.courier.com/shipment?id=" & A2, "點擊追蹤 " & A2)
💡 Execution Mechanism:

HYPERLINK 第一個參數為網址,第二個為顯示文字。

Sample Data Structure
包裹單號 (A)
TW98765432
✨ Expected Output Result:

產生連結: 點擊追蹤 TW98765432

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Dynamic Arrays進階

SORT + UNIQUE + FILTER 多條件去重排序三合一

Real-World Workplace Scenario

Workplace Real Scenario: SORT + UNIQUE + FILTER 多條件去重排序三合一 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=SORT(UNIQUE(FILTER(B2:D100, (C2:C100="已完成") * (D2:D100>=10000), "無符合資料")))
💡 Execution Mechanism:

FILTER 邏輯 AND 篩選,UNIQUE 濾除重複,SORT 排序。

Sample Data Structure
業務員狀態金額
張小明已完成15000
李美麗處理中12000
張小明已完成15000
✨ Expected Output Result:

張小明 (自動去重排序)

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Dynamic Arrays專家

TOCOL 將二維多欄表格展平為單一直欄並忽略空白

Real-World Workplace Scenario

Workplace Real Scenario: TOCOL 將二維多欄表格展平為單一直欄並忽略空白 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=TOCOL(A2:D20, 3)
💡 Execution Mechanism:

TOCOL 逐列掃描 A2:D20 矩陣,第二個參數 3 代表忽略空白與 #N/A。

Sample Data Structure
Q1Q2Q3Q4
10203040
50607080
✨ Expected Output Result:

轉為單一垂直直欄 10, 20, 30, 40, 50...

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Dynamic Arrays進階

CHOOSEROWS + SORTBY 精準抓出前 3 名高分排行榜

Real-World Workplace Scenario

Workplace Real Scenario: CHOOSEROWS + SORTBY 精準抓出前 3 名高分排行榜 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=CHOOSEROWS(SORTBY(A2:C100, C2:C100, -1), 1, 2, 3)
💡 Execution Mechanism:

SORTBY(..., -1) 降序排序,CHOOSEROWS 提取第 1, 2, 3 列。

Sample Data Structure
姓名班級總分
陳大同3A98
林小花3B95
趙四3A92
✨ Expected Output Result:

回傳前 3 名完整列資料

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Dynamic Arrays專家

WRAPROWS 一維向量重構為 3 欄式網格報表

Real-World Workplace Scenario

Workplace Real Scenario: WRAPROWS 一維向量重構為 3 欄式網格報表 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=WRAPROWS(A2:A30, 3, "補空")
💡 Execution Mechanism:

將 A2:A30 依序每 3 個元素折疊為一列。

Sample Data Structure
人員清單
A
B
C
D
E
F
✨ Expected Output Result:

轉為 3 欄網格: Row1[A,B,C] | Row2[D,E,F]

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Dynamic Arrays進階

TAKE + DROP 靈活切片截取表格中間特定區段

Real-World Workplace Scenario

Workplace Real Scenario: TAKE + DROP 靈活切片截取表格中間特定區段 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=TAKE(DROP(A2:C100, 10), 20)
💡 Execution Mechanism:

DROP 先丟棄前 10 列,TAKE 從剩餘資料中取出前 20 列。

Sample Data Structure
ID項目數值
1A10
2B20
✨ Expected Output Result:

精準截取第 11 到 30 列內容

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Dynamic Arrays進階

SEQUENCE 動態生成連續日期序列與每週排班日曆

Real-World Workplace Scenario

Workplace Real Scenario: SEQUENCE 動態生成連續日期序列與每週排班日曆 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=SEQUENCE(30, 1, DATE(2026,8,1), 1)
💡 Execution Mechanism:

生成 30 列、從 2026/8/1 開始、每次加 1 天的日期序列。

Sample Data Structure
自動填滿日期
2026-08-01
2026-08-02
✨ Expected Output Result:

自動溢出 30 天連續日期

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Dynamic Arrays專家

RANDARRAY + SORTBY + TAKE 洗牌法自動不重複隨機抽獎

Real-World Workplace Scenario

Workplace Real Scenario: RANDARRAY + SORTBY + TAKE 洗牌法自動不重複隨機抽獎 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=TAKE(SORTBY(A2:A500, RANDARRAY(ROWS(A2:A500))), 5)
💡 Execution Mechanism:

RANDARRAY 生成隨機陣列,SORTBY 亂序排列後 TAKE 抓取前 5 位。

Sample Data Structure
員工名單
張三
李四
王五
✨ Expected Output Result:

隨機抽出 5 位中獎者名單

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Text Processing進階

TEXTBEFORE + TEXTAFTER 精準提取括號內文字

Real-World Workplace Scenario

Workplace Real Scenario: TEXTBEFORE + TEXTAFTER 精準提取括號內文字 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=TEXTBEFORE(TEXTAFTER(A2, "("), ")")
💡 Execution Mechanism:

TEXTAFTER 先抓 "(" 後面文字,TEXTBEFORE 再抓 ")" 前面文字。

Sample Data Structure
產品標題
MacBook Air (M3 - 16GB)
✨ Expected Output Result:

提取 → M3 - 16GB

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Text Processing專家

TEXTSPLIT 以多重分隔符號切分混合文字欄位

Real-World Workplace Scenario

Workplace Real Scenario: TEXTSPLIT 以多重分隔符號切分混合文字欄位 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=TEXTSPLIT(A2, {",", ";", "、", " "}, , TRUE)
💡 Execution Mechanism:

第二個參數傳入符號陣列,第 4 個參數 TRUE 自動忽略空字串。

Sample Data Structure
混雜標籤
蘋果,香蕉;芭樂 蓮霧
✨ Expected Output Result:

自動拆分為 4 個獨立儲存格

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Text Processing專家

LEN + SUBSTITUTE 精準統計特定關鍵字出現次數

Real-World Workplace Scenario

Workplace Real Scenario: LEN + SUBSTITUTE 精準統計特定關鍵字出現次數 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=(LEN(A2) - LEN(SUBSTITUTE(A2, "退款", ""))) / LEN("退款")
💡 Execution Mechanism:

LEN(A2) 算總長;SUBSTITUTE 移除關鍵字後再算一次長度,相減除以關鍵字長度。

Sample Data Structure
客服內容
客戶要求退款,因瑕疵再次申請退款。
✨ Expected Output Result:

「退款」出現次數 → 2 次

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Text Processing大師

TEXTJOIN + MID + SEQUENCE 自動剔除文字僅保留純數字

Real-World Workplace Scenario

Workplace Real Scenario: TEXTJOIN + MID + SEQUENCE 自動剔除文字僅保留純數字 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=TEXTJOIN("", TRUE, IFERROR(MID(A2, SEQUENCE(LEN(A2)), 1)*1, ""))
💡 Execution Mechanism:

SEQUENCE 產生 1~長度 陣列,MID 逐字拆開乘以 1,IFERROR 濾掉文字後用 TEXTJOIN 串接。

Sample Data Structure
原始文字
訂單A-987654號
✨ Expected Output Result:

純數字 → 987654

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Text Processing進階

REPT 動態生成 ASCII 視覺化文字進度條

Real-World Workplace Scenario

Workplace Real Scenario: REPT 動態生成 ASCII 視覺化文字進度條 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=REPT("█", A2) & REPT("░", 10-A2) & " " & TEXT(A2/10, "0%")
💡 Execution Mechanism:

REPT 重複繪製飽和與空白字元區塊。

Sample Data Structure
完成分級 (1-10)
6
✨ Expected Output Result:

██████░░░░ 60%

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Text Processing進階

TRIM + CLEAN + CHAR(160) 徹底消除網頁複製的隱形怪異空白

Real-World Workplace Scenario

Workplace Real Scenario: TRIM + CLEAN + CHAR(160) 徹底消除網頁複製的隱形怪異空白 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=TRIM(CLEAN(SUBSTITUTE(A2, CHAR(160), " ")))
💡 Execution Mechanism:

替換隱形 HTML 空白後進行全方位文字結構清理。

Sample Data Structure
帶有隱形空白文字
John Doe 
✨ Expected Output Result:

乾淨標準文字 → John Doe

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

LET Optimization大師

LET 變數宣告消除巨型公式重複運算 (速度提升 500%)

Real-World Workplace Scenario

Workplace Real Scenario: LET 變數宣告消除巨型公式重複運算 (速度提升 500%) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=LET(sales, SUMIFS(C2:C1000, A2:A1000, "台北", B2:B1000, "2026"), rate, IF(sales>1000000, 0.15, 0.05), sales * rate)
💡 Execution Mechanism:

LET 先計算 sales = SUMIFS(...);再計算 bonus = sales * rate。

Sample Data Structure
區域年份金額
台北2026650000
台北2026480000
✨ Expected Output Result:

總額 1,130,000 > 1,000,000 → 獎金 169,500

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

LET Optimization大師

SCAN + LAMBDA 算式逐行計算累計滾動餘額 (Running Total)

Real-World Workplace Scenario

Workplace Real Scenario: SCAN + LAMBDA 算式逐行計算累計滾動餘額 (Running Total) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=SCAN(0, A2:A100, LAMBDA(prev, curr, prev + curr))
💡 Execution Mechanism:

初值設為 0,LAMBDA 將上一列累加值 prev 與當前數值 curr 相加。

Sample Data Structure
每日異動金額 (A)
100
200
-50
300
✨ Expected Output Result:

動態溢出累計: 100, 300, 250, 550

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

LET Optimization大師

REDUCE + LAMBDA 依序批次替換多個敏感關鍵字

Real-World Workplace Scenario

Workplace Real Scenario: REDUCE + LAMBDA 依序批次替換多個敏感關鍵字 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=REDUCE(A2, {"張三", "李四", "王五"}, LAMBDA(text, kw, SUBSTITUTE(text, kw, "***")))
💡 Execution Mechanism:

REDUCE 以 A2 為初始值,依次將陣列中的 kw 帶入 SUBSTITUTE 替換。

Sample Data Structure
原始合約內容
甲方張三與乙方李四達成協議
✨ Expected Output Result:

「甲方***與乙方***達成協議」

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

LET Optimization專家

BYROW + LAMBDA 逐列求算多欄分數極值

Real-World Workplace Scenario

Workplace Real Scenario: BYROW + LAMBDA 逐列求算多欄分數極值 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=BYROW(B2:E100, LAMBDA(row, MAX(row)))
💡 Execution Mechanism:

BYROW 將 B2:E100 的每一列傳給 row 變數,由 MAX(row) 求極值。

Sample Data Structure
國文英文數學自然
85927895
✨ Expected Output Result:

該列最高分 → 95

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

LET Optimization進階

AGGREGATE 忽略 `#N/A` 錯誤值與隱藏列進行精確求和

Real-World Workplace Scenario

Workplace Real Scenario: AGGREGATE 忽略 `#N/A` 錯誤值與隱藏列進行精確求和 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=AGGREGATE(9, 6, A2:A100)
💡 Execution Mechanism:

AGGREGATE 參數 9 求和,參數 6 自動排除錯誤儲存格。

Sample Data Structure
數值欄位
100
#N/A
200
✨ Expected Output Result:

自動排除錯誤求和 → 300

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

LET Optimization基礎

SUBTOTAL (功能碼 109) 僅對篩選後的「可見儲存格」求和

Real-World Workplace Scenario

Workplace Real Scenario: SUBTOTAL (功能碼 109) 僅對篩選後的「可見儲存格」求和 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=SUBTOTAL(109, C2:C100)
💡 Execution Mechanism:

SUBTOTAL 功能碼 109 計算被篩選後的顯示資料。

Sample Data Structure
銷售額 (含隱藏列)
500
1000
✨ Expected Output Result:

僅對可見列進行動態加總

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

LET Optimization進階

SUMPRODUCT 加權平均數精算 (如學分/產品比重)

Real-World Workplace Scenario

Workplace Real Scenario: SUMPRODUCT 加權平均數精算 (如學分/產品比重) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=SUMPRODUCT(A2:A10, B2:B10) / SUM(B2:B10)
💡 Execution Mechanism:

SUMPRODUCT 逐項相乘求和,再除以權重 Sum。

Sample Data Structure
科目分數 (A)學分數 (B)
853
902
704
✨ Expected Output Result:

加權平均分數 → 79.44 分

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

LET Optimization基礎

SUMIFS 指定特定年份或日期區間之營收加總

Real-World Workplace Scenario

Workplace Real Scenario: SUMIFS 指定特定年份或日期區間之營收加總 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=SUMIFS(C2:C100, A2:A100, ">=2026-01-01", A2:A100, "<=2026-12-31")
💡 Execution Mechanism:

第一個日期條件指示大於等於起始日,第二個條件指示小於等於截止日。

Sample Data Structure
發票日期摘要金額
2026-05-10專案銷貨120000
✨ Expected Output Result:

2026 年度累計總營收

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

LET Optimization基礎

COUNTIFS 自動統計符合多重交錯條件之筆數

Real-World Workplace Scenario

Workplace Real Scenario: COUNTIFS 自動統計符合多重交錯條件之筆數 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=COUNTIFS(A2:A100, "台北", B2:B100, "合格")
💡 Execution Mechanism:

同時滿足 A 欄為台北且 B 欄為合格時才計數 1。

Sample Data Structure
分公司測試狀態
台北合格
台中合格
✨ Expected Output Result:

符合條件總筆數

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

LET Optimization基礎

IFS 多重分支條件評等 (取代 5 層嵌套 IF)

Real-World Workplace Scenario

Workplace Real Scenario: IFS 多重分支條件評等 (取代 5 層嵌套 IF) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=IFS(A2>=90, "優等", A2>=80, "甲等", A2>=70, "乙等", TRUE, "丙等")
💡 Execution Mechanism:

第一個滿足條件即傳回結果,最後帶入 TRUE 當作 Default。

Sample Data Structure
測驗分數
85
✨ Expected Output Result:

評等結果 → 甲等

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

LET Optimization基礎

SWITCH 值匹配分支轉換 (數值轉換中文星期)

Real-World Workplace Scenario

Workplace Real Scenario: SWITCH 值匹配分支轉換 (數值轉換中文星期) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=SWITCH(WEEKDAY(A2, 2), 1, "星期一", 2, "星期二", 3, "星期三", 4, "星期四", 5, "星期五", 6, "星期六", 7, "星期日", "錯誤")
💡 Execution Mechanism:

將輸入值比對各個 Case 並傳回相對應的中文說明。

Sample Data Structure
日期
2026-08-01
✨ Expected Output Result:

轉為中文星期 → 星期六

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Dates & Workdays進階

WORKDAY.INTL 自訂排休天數推算交期 (如週日單休)

Real-World Workplace Scenario

Workplace Real Scenario: WORKDAY.INTL 自訂排休天數推算交期 (如週日單休) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=WORKDAY.INTL(A2, 10, "0000001", C2:C10)
💡 Execution Mechanism:

"0000001" 代表週一至週六上班,只有第 7 位 (週日) 休息。

Sample Data Structure
開工日期天數休假字串
2026-08-01100000001
✨ Expected Output Result:

精準推算扣除週日與假日的交期

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Dates & Workdays進階

DATEDIF 精算員工到職年資 (年/月/天數詳細組合)

Real-World Workplace Scenario

Workplace Real Scenario: DATEDIF 精算員工到職年資 (年/月/天數詳細組合) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=DATEDIF(A2, TODAY(), "Y") & "年 " & DATEDIF(A2, TODAY(), "YM") & "個月 "
💡 Execution Mechanism:

"Y" 計算完整年數,"YM" 計算扣除整年後的剩餘月數。

Sample Data Structure
到職日期
2020-03-15
✨ Expected Output Result:

顯示格式: 6年 5個月

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Dates & Workdays基礎

EOMONTH 精算當月或指定月份之最後一日 (結算日)

Real-World Workplace Scenario

Workplace Real Scenario: EOMONTH 精算當月或指定月份之最後一日 (結算日) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=EOMONTH(A2, 1)
💡 Execution Mechanism:

EOMONTH 傳回加上指定月份後的最後一天。

Sample Data Structure
發票日期
2026-08-15
✨ Expected Output Result:

結算到期日 → 2026-09-30

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Finance & Annuity專家

XIRR 不定期現金流年化內部報酬率 (年化 IRR 算式)

Real-World Workplace Scenario

Workplace Real Scenario: XIRR 不定期現金流年化內部報酬率 (年化 IRR 算式) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=XIRR(B2:B10, A2:A10)
💡 Execution Mechanism:

第一個參數為現金流量 (投入負數、領回正數),第二個參數為對應日期。

Sample Data Structure
日期現金流量 (NTD)
2025-01-15-100000
2025-06-205000
2026-01-15112000
✨ Expected Output Result:

真實年化報酬率 XIRR → 17.35%

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Finance & Annuity進階

PMT 房貸/個人信貸每月等額本息還款金額計算

Real-World Workplace Scenario

Workplace Real Scenario: PMT 房貸/個人信貸每月等額本息還款金額計算 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=PMT(2.15%/12, 30*12, -10000000)
💡 Execution Mechanism:

利率需除以 12,總期數乘以 12,現值 PV 輸入負數代表借款本金。

Sample Data Structure
貸款本金年利率期限 (年)
100000002.15%30
✨ Expected Output Result:

每月應還本利和 → 37,705 元

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Finance & Annuity專家

PPMT + IPMT 拆算房貸第一期之「純本金」與「純利息」金額

Real-World Workplace Scenario

Workplace Real Scenario: PPMT + IPMT 拆算房貸第一期之「純本金」與「純利息」金額 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
="本金: " & TEXT(PPMT(2.15%/12, 1, 360, -10000000), "$#,##0") & " | 利息: " & TEXT(IPMT(2.15%/12, 1, 360, -10000000), "$#,##0")
💡 Execution Mechanism:

PPMT 計算第 1 期償還本金,IPMT 計算第 1 期利息支出。

Sample Data Structure
貸款本金年利率期數
100000002.15%360
✨ Expected Output Result:

第 1 期本金: 19,788 元 | 利息: 17,917 元

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Finance & Annuity進階

FV 計算每月定期定額複利投資之未來終值

Real-World Workplace Scenario

Workplace Real Scenario: FV 計算每月定期定額複利投資之未來終值 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=FV(6%/12, 10*12, -10000, 0)
💡 Execution Mechanism:

FV 傳回投資未來的終值。

Sample Data Structure
月投資額年化報酬率投資年數
100006%10
✨ Expected Output Result:

10 年後資產終值 → 1,638,793 元

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Finance & Annuity專家

NPV 計算資本預算與專案投資淨現值

Real-World Workplace Scenario

Workplace Real Scenario: NPV 計算資本預算與專案投資淨現值 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=NPV(8%, B2:B4) + B1
💡 Execution Mechanism:

NPV 折現未來現金流,加上第 0 期的初期投入 B1 (負數)。

Sample Data Structure
年份/現金流
-500000
200000
250000
300000
✨ Expected Output Result:

NPV 淨現值 → 123,045 元 (可行)

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Lookup & Match進階

XLOOKUP 多條件組合 (邏輯 AND 雙欄位匹配)

Real-World Workplace Scenario

Workplace Real Scenario: XLOOKUP 多條件組合 (邏輯 AND 雙欄位匹配) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=XLOOKUP(1, (A2:A100="台北") * (B2:B100="VIP"), C2:C100, "無此客戶")
💡 Execution Mechanism:

利用布林乘法 (A="台北")*(B="VIP") 產生 0 與 1 陣列,由 XLOOKUP 比對 1。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

找到對應專屬業務員

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Lookup & Match專家

OFFSET + MATCH 動態可調大小範圍參照

Real-World Workplace Scenario

Workplace Real Scenario: OFFSET + MATCH 動態可調大小範圍參照 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=SUM(OFFSET(A1, MATCH(G2, A2:A100, 0), 1, 5, 1))
💡 Execution Mechanism:

MATCH 計算起始點偏移量,OFFSET 動態定出 5 列 1 欄區塊後交由 SUM 加總。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

動態 5 日連續營收和

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Lookup & Match進階

XLOOKUP 比對不到時傳回相鄰替代降級值

Real-World Workplace Scenario

Workplace Real Scenario: XLOOKUP 比對不到時傳回相鄰替代降級值 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=XLOOKUP(A2, C2:C10, D2:D10, XLOOKUP("通用卡", C2:C10, D2:D10))
💡 Execution Mechanism:

XLOOKUP 第四個參數 if_not_found 直接嵌套另一次降級檢索。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

預設回傳「通用卡」折扣

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Dynamic Arrays進階

EXPAND 自動補滿未滿規格之動態矩陣

Real-World Workplace Scenario

Workplace Real Scenario: EXPAND 自動補滿未滿規格之動態矩陣 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=EXPAND(A2:C10, 15, 3, "待建檔")
💡 Execution Mechanism:

EXPAND(範圍, 總列數, 總欄數, 預設值) 將矩陣放大補滿。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

自動填充至 15 列完整規格

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Dynamic Arrays專家

CHOOSECOLS + SORTBY 選取指定第 1 與 3 欄並排序

Real-World Workplace Scenario

Workplace Real Scenario: CHOOSECOLS + SORTBY 選取指定第 1 與 3 欄並排序 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=SORTBY(CHOOSECOLS(A2:D100, 1, 3), D2:D100, -1)
💡 Execution Mechanism:

CHOOSECOLS 挑選所需直欄,SORTBY 指定依第 4 欄金額排序。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

精簡輸出第 1,3 欄並完成排序

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Dynamic Arrays進階

SINGLE / @ 算式強制作用域降維單一值

Real-World Workplace Scenario

Workplace Real Scenario: SINGLE / @ 算式強制作用域降維單一值 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=@FILTER(A2:A100, B2:B100="關鍵專案")
💡 Execution Mechanism:

隱式交集運算子 `@` 自動精簡動態陣列僅傳回首個值。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

僅傳回第一筆符合者

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Text Processing專家

SUBSTITUTE 僅替換第二個出現的特定字元 (如連字號)

Real-World Workplace Scenario

Workplace Real Scenario: SUBSTITUTE 僅替換第二個出現的特定字元 (如連字號) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=SUBSTITUTE(A2, "-", "/", 2)
💡 Execution Mechanism:

SUBSTITUTE 第 4 個參數 instance_num 指定僅替換第 2 次出現者。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

轉為 2026-08/01-A

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Text Processing進階

PROPER + TRIM 全小寫英文姓名格式化標籤

Real-World Workplace Scenario

Workplace Real Scenario: PROPER + TRIM 全小寫英文姓名格式化標籤 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=PROPER(TRIM(A2))
💡 Execution Mechanism:

TRIM 去除多餘空格,PROPER 將每個單字首字轉大寫。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

格式化 → John Smith

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Text Processing基礎

NUMBERVALUE 將歐式格式字串 "1.234,56" 轉為標準數字

Real-World Workplace Scenario

Workplace Real Scenario: NUMBERVALUE 將歐式格式字串 "1.234,56" 轉為標準數字 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=NUMBERVALUE(A2, ",", ".")
💡 Execution Mechanism:

第一個參數為小數點分隔符號,第二個為千分位分隔符號。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

轉為數值 1234.56

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

LET Optimization大師

MAP + LAMBDA 對整個表格每一個儲存格進行單位換算

Real-World Workplace Scenario

Workplace Real Scenario: MAP + LAMBDA 對整個表格每一個儲存格進行單位換算 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=MAP(A2:C10, LAMBDA(val, IF(ISNUMBER(val), val * 31.5, val)))
💡 Execution Mechanism:

MAP 逐項檢視儲存格,由 LAMBDA 套用數字乘以 31.5 邏輯。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

矩陣內數值自動轉台幣

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

LET Optimization大師

BYCOL + LAMBDA 自動求算多欄垂直平均數

Real-World Workplace Scenario

Workplace Real Scenario: BYCOL + LAMBDA 自動求算多欄垂直平均數 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=BYCOL(A2:D100, LAMBDA(col, AVERAGE(col)))
💡 Execution Mechanism:

BYCOL 將每一直欄傳給 col,由 AVERAGE(col) 求算平均值並溢出。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

溢出橫向 4 個季度平均值

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Dates & Workdays基礎

EDATE 快速推算 N 個月後的合約或保固到期日

Real-World Workplace Scenario

Workplace Real Scenario: EDATE 快速推算 N 個月後的合約或保固到期日 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=EDATE(A2, 24)
💡 Execution Mechanism:

EDATE 傳回加上指定月份後的同一個日曆天數。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

自動推算 24 個月後日期

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Dates & Workdays進階

ISOWEEKNUM 精算國際 ISO 標準週別

Real-World Workplace Scenario

Workplace Real Scenario: ISOWEEKNUM 精算國際 ISO 標準週別 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=ISOWEEKNUM(A2)
💡 Execution Mechanism:

符合歐洲與跨國企業週別標準 (週一為一週第一天)。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

回傳週別數字 (如 31)

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Finance & Annuity專家

SLN 直線折舊法計算固定資產每年折舊費用

Real-World Workplace Scenario

Workplace Real Scenario: SLN 直線折舊法計算固定資產每年折舊費用 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=SLN(1000000, 100000, 5)
💡 Execution Mechanism:

`(原價 - 殘值) / 耐用年數` 的平均折舊演算法。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

每年折舊 180,000 元

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Finance & Annuity專家

SYD 年數總和折舊法計算資產前期加速折舊額

Real-World Workplace Scenario

Workplace Real Scenario: SYD 年數總和折舊法計算資產前期加速折舊額 - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=SYD(1000000, 100000, 5, 1)
💡 Execution Mechanism:

前期提列較多折舊,符合設備早期產能較高的經濟效應。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

第 1 年折舊 300,000 元

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Lookup & Match進階

XLOOKUP 搭配 IFERROR 進行跨檔案降級備援 (組合技 #61)

Real-World Workplace Scenario

Workplace Real Scenario: XLOOKUP 搭配 IFERROR 進行跨檔案降級備援 (組合技 #61) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=IFERROR(XLOOKUP(A2, [DB1.xlsx]Sheet1!$A:$A, [DB1.xlsx]Sheet1!$B:$B), XLOOKUP(A2, [DB2.xlsx]Sheet1!$A:$A, [DB2.xlsx]Sheet1!$B:$B))
💡 Execution Mechanism:

雙層 IFERROR + XLOOKUP 實現多檔案資料庫備援機制。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

從第二資料庫成功抓取料號

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Dynamic Arrays專家

CHOOSEROWS + SEQUENCE 自動擷取偶數列資料 (組合技 #62)

Real-World Workplace Scenario

Workplace Real Scenario: CHOOSEROWS + SEQUENCE 自動擷取偶數列資料 (組合技 #62) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=CHOOSEROWS(A2:D100, SEQUENCE(ROWS(A2:D100)/2, 1, 2, 2))
💡 Execution Mechanism:

SEQUENCE 產生 2, 4, 6 步長為 2 陣列,傳給 CHOOSEROWS 提取。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

自動隔列精準抽樣

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Text Processing進階

TEXTBEFORE 提取網址 Domain 頂級網域名稱 (組合技 #63)

Real-World Workplace Scenario

Workplace Real Scenario: TEXTBEFORE 提取網址 Domain 頂級網域名稱 (組合技 #63) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=TEXTBEFORE(TEXTAFTER(A2, "https://"), "/")
💡 Execution Mechanism:

TEXTAFTER 剔除通訊協定,TEXTBEFORE 取路徑斜線前的網域名稱。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

網域名稱 → fei-cen.com

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

LET Optimization大師

LAMBDA 建立自訂 BMI 身體質量指數計算函數 (組合技 #64)

Real-World Workplace Scenario

Workplace Real Scenario: LAMBDA 建立自訂 BMI 身體質量指數計算函數 (組合技 #64) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=LET(BMI, LAMBDA(w, h, w / (h/100)^2), BMI(70, 175))
💡 Execution Mechanism:

LAMBDA(w, h, w/(h/100)^2) 封裝演算法,傳入 (70, 175) 即可求解。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

BMI → 22.86

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Dates & Workdays基礎

WEEKDAY 判斷日期是否為週末假日 (組合技 #65)

Real-World Workplace Scenario

Workplace Real Scenario: WEEKDAY 判斷日期是否為週末假日 (組合技 #65) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=IF(WEEKDAY(A2, 2)>=6, "週末休假", "正常工作日")
💡 Execution Mechanism:

WEEKDAY(..., 2) 參數 2 代表週一為 1,週六日為 6 與 7。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

顯示: 週末休假

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Finance & Annuity專家

IRR 計算定期現金流內部報酬率 (組合技 #66)

Real-World Workplace Scenario

Workplace Real Scenario: IRR 計算定期現金流內部報酬率 (組合技 #66) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=IRR(A2:A10)
💡 Execution Mechanism:

IRR 算出一系列定期現金流量的內部報酬率。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

IRR 年化報酬率 → 3.82%

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Lookup & Match進階

XLOOKUP 搭配 IFERROR 進行跨檔案降級備援 (組合技 #67)

Real-World Workplace Scenario

Workplace Real Scenario: XLOOKUP 搭配 IFERROR 進行跨檔案降級備援 (組合技 #67) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=IFERROR(XLOOKUP(A2, [DB1.xlsx]Sheet1!$A:$A, [DB1.xlsx]Sheet1!$B:$B), XLOOKUP(A2, [DB2.xlsx]Sheet1!$A:$A, [DB2.xlsx]Sheet1!$B:$B))
💡 Execution Mechanism:

雙層 IFERROR + XLOOKUP 實現多檔案資料庫備援機制。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

從第二資料庫成功抓取料號

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Dynamic Arrays專家

CHOOSEROWS + SEQUENCE 自動擷取偶數列資料 (組合技 #68)

Real-World Workplace Scenario

Workplace Real Scenario: CHOOSEROWS + SEQUENCE 自動擷取偶數列資料 (組合技 #68) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=CHOOSEROWS(A2:D100, SEQUENCE(ROWS(A2:D100)/2, 1, 2, 2))
💡 Execution Mechanism:

SEQUENCE 產生 2, 4, 6 步長為 2 陣列,傳給 CHOOSEROWS 提取。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

自動隔列精準抽樣

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Text Processing進階

TEXTBEFORE 提取網址 Domain 頂級網域名稱 (組合技 #69)

Real-World Workplace Scenario

Workplace Real Scenario: TEXTBEFORE 提取網址 Domain 頂級網域名稱 (組合技 #69) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=TEXTBEFORE(TEXTAFTER(A2, "https://"), "/")
💡 Execution Mechanism:

TEXTAFTER 剔除通訊協定,TEXTBEFORE 取路徑斜線前的網域名稱。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

網域名稱 → fei-cen.com

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

LET Optimization大師

LAMBDA 建立自訂 BMI 身體質量指數計算函數 (組合技 #70)

Real-World Workplace Scenario

Workplace Real Scenario: LAMBDA 建立自訂 BMI 身體質量指數計算函數 (組合技 #70) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=LET(BMI, LAMBDA(w, h, w / (h/100)^2), BMI(70, 175))
💡 Execution Mechanism:

LAMBDA(w, h, w/(h/100)^2) 封裝演算法,傳入 (70, 175) 即可求解。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

BMI → 22.86

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Dates & Workdays基礎

WEEKDAY 判斷日期是否為週末假日 (組合技 #71)

Real-World Workplace Scenario

Workplace Real Scenario: WEEKDAY 判斷日期是否為週末假日 (組合技 #71) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=IF(WEEKDAY(A2, 2)>=6, "週末休假", "正常工作日")
💡 Execution Mechanism:

WEEKDAY(..., 2) 參數 2 代表週一為 1,週六日為 6 與 7。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

顯示: 週末休假

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Finance & Annuity專家

IRR 計算定期現金流內部報酬率 (組合技 #72)

Real-World Workplace Scenario

Workplace Real Scenario: IRR 計算定期現金流內部報酬率 (組合技 #72) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=IRR(A2:A10)
💡 Execution Mechanism:

IRR 算出一系列定期現金流量的內部報酬率。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

IRR 年化報酬率 → 3.82%

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Lookup & Match進階

XLOOKUP 搭配 IFERROR 進行跨檔案降級備援 (組合技 #73)

Real-World Workplace Scenario

Workplace Real Scenario: XLOOKUP 搭配 IFERROR 進行跨檔案降級備援 (組合技 #73) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=IFERROR(XLOOKUP(A2, [DB1.xlsx]Sheet1!$A:$A, [DB1.xlsx]Sheet1!$B:$B), XLOOKUP(A2, [DB2.xlsx]Sheet1!$A:$A, [DB2.xlsx]Sheet1!$B:$B))
💡 Execution Mechanism:

雙層 IFERROR + XLOOKUP 實現多檔案資料庫備援機制。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

從第二資料庫成功抓取料號

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Dynamic Arrays專家

CHOOSEROWS + SEQUENCE 自動擷取偶數列資料 (組合技 #74)

Real-World Workplace Scenario

Workplace Real Scenario: CHOOSEROWS + SEQUENCE 自動擷取偶數列資料 (組合技 #74) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=CHOOSEROWS(A2:D100, SEQUENCE(ROWS(A2:D100)/2, 1, 2, 2))
💡 Execution Mechanism:

SEQUENCE 產生 2, 4, 6 步長為 2 陣列,傳給 CHOOSEROWS 提取。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

自動隔列精準抽樣

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Text Processing進階

TEXTBEFORE 提取網址 Domain 頂級網域名稱 (組合技 #75)

Real-World Workplace Scenario

Workplace Real Scenario: TEXTBEFORE 提取網址 Domain 頂級網域名稱 (組合技 #75) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=TEXTBEFORE(TEXTAFTER(A2, "https://"), "/")
💡 Execution Mechanism:

TEXTAFTER 剔除通訊協定,TEXTBEFORE 取路徑斜線前的網域名稱。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

網域名稱 → fei-cen.com

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

LET Optimization大師

LAMBDA 建立自訂 BMI 身體質量指數計算函數 (組合技 #76)

Real-World Workplace Scenario

Workplace Real Scenario: LAMBDA 建立自訂 BMI 身體質量指數計算函數 (組合技 #76) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=LET(BMI, LAMBDA(w, h, w / (h/100)^2), BMI(70, 175))
💡 Execution Mechanism:

LAMBDA(w, h, w/(h/100)^2) 封裝演算法,傳入 (70, 175) 即可求解。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

BMI → 22.86

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Dates & Workdays基礎

WEEKDAY 判斷日期是否為週末假日 (組合技 #77)

Real-World Workplace Scenario

Workplace Real Scenario: WEEKDAY 判斷日期是否為週末假日 (組合技 #77) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=IF(WEEKDAY(A2, 2)>=6, "週末休假", "正常工作日")
💡 Execution Mechanism:

WEEKDAY(..., 2) 參數 2 代表週一為 1,週六日為 6 與 7。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

顯示: 週末休假

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Finance & Annuity專家

IRR 計算定期現金流內部報酬率 (組合技 #78)

Real-World Workplace Scenario

Workplace Real Scenario: IRR 計算定期現金流內部報酬率 (組合技 #78) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=IRR(A2:A10)
💡 Execution Mechanism:

IRR 算出一系列定期現金流量的內部報酬率。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

IRR 年化報酬率 → 3.82%

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Lookup & Match進階

XLOOKUP 搭配 IFERROR 進行跨檔案降級備援 (組合技 #79)

Real-World Workplace Scenario

Workplace Real Scenario: XLOOKUP 搭配 IFERROR 進行跨檔案降級備援 (組合技 #79) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=IFERROR(XLOOKUP(A2, [DB1.xlsx]Sheet1!$A:$A, [DB1.xlsx]Sheet1!$B:$B), XLOOKUP(A2, [DB2.xlsx]Sheet1!$A:$A, [DB2.xlsx]Sheet1!$B:$B))
💡 Execution Mechanism:

雙層 IFERROR + XLOOKUP 實現多檔案資料庫備援機制。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

從第二資料庫成功抓取料號

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Dynamic Arrays專家

CHOOSEROWS + SEQUENCE 自動擷取偶數列資料 (組合技 #80)

Real-World Workplace Scenario

Workplace Real Scenario: CHOOSEROWS + SEQUENCE 自動擷取偶數列資料 (組合技 #80) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=CHOOSEROWS(A2:D100, SEQUENCE(ROWS(A2:D100)/2, 1, 2, 2))
💡 Execution Mechanism:

SEQUENCE 產生 2, 4, 6 步長為 2 陣列,傳給 CHOOSEROWS 提取。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

自動隔列精準抽樣

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Text Processing進階

TEXTBEFORE 提取網址 Domain 頂級網域名稱 (組合技 #81)

Real-World Workplace Scenario

Workplace Real Scenario: TEXTBEFORE 提取網址 Domain 頂級網域名稱 (組合技 #81) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=TEXTBEFORE(TEXTAFTER(A2, "https://"), "/")
💡 Execution Mechanism:

TEXTAFTER 剔除通訊協定,TEXTBEFORE 取路徑斜線前的網域名稱。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

網域名稱 → fei-cen.com

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

LET Optimization大師

LAMBDA 建立自訂 BMI 身體質量指數計算函數 (組合技 #82)

Real-World Workplace Scenario

Workplace Real Scenario: LAMBDA 建立自訂 BMI 身體質量指數計算函數 (組合技 #82) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=LET(BMI, LAMBDA(w, h, w / (h/100)^2), BMI(70, 175))
💡 Execution Mechanism:

LAMBDA(w, h, w/(h/100)^2) 封裝演算法,傳入 (70, 175) 即可求解。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

BMI → 22.86

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Dates & Workdays基礎

WEEKDAY 判斷日期是否為週末假日 (組合技 #83)

Real-World Workplace Scenario

Workplace Real Scenario: WEEKDAY 判斷日期是否為週末假日 (組合技 #83) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=IF(WEEKDAY(A2, 2)>=6, "週末休假", "正常工作日")
💡 Execution Mechanism:

WEEKDAY(..., 2) 參數 2 代表週一為 1,週六日為 6 與 7。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

顯示: 週末休假

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Finance & Annuity專家

IRR 計算定期現金流內部報酬率 (組合技 #84)

Real-World Workplace Scenario

Workplace Real Scenario: IRR 計算定期現金流內部報酬率 (組合技 #84) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=IRR(A2:A10)
💡 Execution Mechanism:

IRR 算出一系列定期現金流量的內部報酬率。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

IRR 年化報酬率 → 3.82%

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Lookup & Match進階

XLOOKUP 搭配 IFERROR 進行跨檔案降級備援 (組合技 #85)

Real-World Workplace Scenario

Workplace Real Scenario: XLOOKUP 搭配 IFERROR 進行跨檔案降級備援 (組合技 #85) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=IFERROR(XLOOKUP(A2, [DB1.xlsx]Sheet1!$A:$A, [DB1.xlsx]Sheet1!$B:$B), XLOOKUP(A2, [DB2.xlsx]Sheet1!$A:$A, [DB2.xlsx]Sheet1!$B:$B))
💡 Execution Mechanism:

雙層 IFERROR + XLOOKUP 實現多檔案資料庫備援機制。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

從第二資料庫成功抓取料號

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Dynamic Arrays專家

CHOOSEROWS + SEQUENCE 自動擷取偶數列資料 (組合技 #86)

Real-World Workplace Scenario

Workplace Real Scenario: CHOOSEROWS + SEQUENCE 自動擷取偶數列資料 (組合技 #86) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=CHOOSEROWS(A2:D100, SEQUENCE(ROWS(A2:D100)/2, 1, 2, 2))
💡 Execution Mechanism:

SEQUENCE 產生 2, 4, 6 步長為 2 陣列,傳給 CHOOSEROWS 提取。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

自動隔列精準抽樣

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Text Processing進階

TEXTBEFORE 提取網址 Domain 頂級網域名稱 (組合技 #87)

Real-World Workplace Scenario

Workplace Real Scenario: TEXTBEFORE 提取網址 Domain 頂級網域名稱 (組合技 #87) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=TEXTBEFORE(TEXTAFTER(A2, "https://"), "/")
💡 Execution Mechanism:

TEXTAFTER 剔除通訊協定,TEXTBEFORE 取路徑斜線前的網域名稱。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

網域名稱 → fei-cen.com

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

LET Optimization大師

LAMBDA 建立自訂 BMI 身體質量指數計算函數 (組合技 #88)

Real-World Workplace Scenario

Workplace Real Scenario: LAMBDA 建立自訂 BMI 身體質量指數計算函數 (組合技 #88) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=LET(BMI, LAMBDA(w, h, w / (h/100)^2), BMI(70, 175))
💡 Execution Mechanism:

LAMBDA(w, h, w/(h/100)^2) 封裝演算法,傳入 (70, 175) 即可求解。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

BMI → 22.86

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Dates & Workdays基礎

WEEKDAY 判斷日期是否為週末假日 (組合技 #89)

Real-World Workplace Scenario

Workplace Real Scenario: WEEKDAY 判斷日期是否為週末假日 (組合技 #89) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=IF(WEEKDAY(A2, 2)>=6, "週末休假", "正常工作日")
💡 Execution Mechanism:

WEEKDAY(..., 2) 參數 2 代表週一為 1,週六日為 6 與 7。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

顯示: 週末休假

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Finance & Annuity專家

IRR 計算定期現金流內部報酬率 (組合技 #90)

Real-World Workplace Scenario

Workplace Real Scenario: IRR 計算定期現金流內部報酬率 (組合技 #90) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=IRR(A2:A10)
💡 Execution Mechanism:

IRR 算出一系列定期現金流量的內部報酬率。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

IRR 年化報酬率 → 3.82%

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Lookup & Match進階

XLOOKUP 搭配 IFERROR 進行跨檔案降級備援 (組合技 #91)

Real-World Workplace Scenario

Workplace Real Scenario: XLOOKUP 搭配 IFERROR 進行跨檔案降級備援 (組合技 #91) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=IFERROR(XLOOKUP(A2, [DB1.xlsx]Sheet1!$A:$A, [DB1.xlsx]Sheet1!$B:$B), XLOOKUP(A2, [DB2.xlsx]Sheet1!$A:$A, [DB2.xlsx]Sheet1!$B:$B))
💡 Execution Mechanism:

雙層 IFERROR + XLOOKUP 實現多檔案資料庫備援機制。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

從第二資料庫成功抓取料號

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Dynamic Arrays專家

CHOOSEROWS + SEQUENCE 自動擷取偶數列資料 (組合技 #92)

Real-World Workplace Scenario

Workplace Real Scenario: CHOOSEROWS + SEQUENCE 自動擷取偶數列資料 (組合技 #92) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=CHOOSEROWS(A2:D100, SEQUENCE(ROWS(A2:D100)/2, 1, 2, 2))
💡 Execution Mechanism:

SEQUENCE 產生 2, 4, 6 步長為 2 陣列,傳給 CHOOSEROWS 提取。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

自動隔列精準抽樣

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Text Processing進階

TEXTBEFORE 提取網址 Domain 頂級網域名稱 (組合技 #93)

Real-World Workplace Scenario

Workplace Real Scenario: TEXTBEFORE 提取網址 Domain 頂級網域名稱 (組合技 #93) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=TEXTBEFORE(TEXTAFTER(A2, "https://"), "/")
💡 Execution Mechanism:

TEXTAFTER 剔除通訊協定,TEXTBEFORE 取路徑斜線前的網域名稱。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

網域名稱 → fei-cen.com

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

LET Optimization大師

LAMBDA 建立自訂 BMI 身體質量指數計算函數 (組合技 #94)

Real-World Workplace Scenario

Workplace Real Scenario: LAMBDA 建立自訂 BMI 身體質量指數計算函數 (組合技 #94) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=LET(BMI, LAMBDA(w, h, w / (h/100)^2), BMI(70, 175))
💡 Execution Mechanism:

LAMBDA(w, h, w/(h/100)^2) 封裝演算法,傳入 (70, 175) 即可求解。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

BMI → 22.86

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Dates & Workdays基礎

WEEKDAY 判斷日期是否為週末假日 (組合技 #95)

Real-World Workplace Scenario

Workplace Real Scenario: WEEKDAY 判斷日期是否為週末假日 (組合技 #95) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=IF(WEEKDAY(A2, 2)>=6, "週末休假", "正常工作日")
💡 Execution Mechanism:

WEEKDAY(..., 2) 參數 2 代表週一為 1,週六日為 6 與 7。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

顯示: 週末休假

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Finance & Annuity專家

IRR 計算定期現金流內部報酬率 (組合技 #96)

Real-World Workplace Scenario

Workplace Real Scenario: IRR 計算定期現金流內部報酬率 (組合技 #96) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=IRR(A2:A10)
💡 Execution Mechanism:

IRR 算出一系列定期現金流量的內部報酬率。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

IRR 年化報酬率 → 3.82%

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Lookup & Match進階

XLOOKUP 搭配 IFERROR 進行跨檔案降級備援 (組合技 #97)

Real-World Workplace Scenario

Workplace Real Scenario: XLOOKUP 搭配 IFERROR 進行跨檔案降級備援 (組合技 #97) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=IFERROR(XLOOKUP(A2, [DB1.xlsx]Sheet1!$A:$A, [DB1.xlsx]Sheet1!$B:$B), XLOOKUP(A2, [DB2.xlsx]Sheet1!$A:$A, [DB2.xlsx]Sheet1!$B:$B))
💡 Execution Mechanism:

雙層 IFERROR + XLOOKUP 實現多檔案資料庫備援機制。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

從第二資料庫成功抓取料號

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Dynamic Arrays專家

CHOOSEROWS + SEQUENCE 自動擷取偶數列資料 (組合技 #98)

Real-World Workplace Scenario

Workplace Real Scenario: CHOOSEROWS + SEQUENCE 自動擷取偶數列資料 (組合技 #98) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=CHOOSEROWS(A2:D100, SEQUENCE(ROWS(A2:D100)/2, 1, 2, 2))
💡 Execution Mechanism:

SEQUENCE 產生 2, 4, 6 步長為 2 陣列,傳給 CHOOSEROWS 提取。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

自動隔列精準抽樣

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

Text Processing進階

TEXTBEFORE 提取網址 Domain 頂級網域名稱 (組合技 #99)

Real-World Workplace Scenario

Workplace Real Scenario: TEXTBEFORE 提取網址 Domain 頂級網域名稱 (組合技 #99) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=TEXTBEFORE(TEXTAFTER(A2, "https://"), "/")
💡 Execution Mechanism:

TEXTAFTER 剔除通訊協定,TEXTBEFORE 取路徑斜線前的網域名稱。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

網域名稱 → fei-cen.com

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

LET Optimization大師

LAMBDA 建立自訂 BMI 身體質量指數計算函數 (組合技 #100)

Real-World Workplace Scenario

Workplace Real Scenario: LAMBDA 建立自訂 BMI 身體質量指數計算函數 (組合技 #100) - Professional Data Analysis & Automation.

🟢 Excel 365 / 2021+ Modern Syntax
=LET(BMI, LAMBDA(w, h, w / (h/100)^2), BMI(70, 175))
💡 Execution Mechanism:

LAMBDA(w, h, w/(h/100)^2) 封裝演算法,傳入 (70, 175) 即可求解。

Sample Data Structure
對照欄A數值欄B
範例資料1100
範例資料2200
✨ Expected Output Result:

BMI → 22.86

Pro Master Tip:

Ensure target cell ranges match dimensions to prevent formula errors.

📊 Why Do Your Excel Formulas Throw Errors or Calculate Slowly?

Official Microsoft documentation provides basic examples. Real-world workplace data involves mixed text, multi-criteria logic, and a technical generation gap.

🟢 Excel 365 / 2021+ Core Revolution: Dynamic Arrays

XLOOKUP, FILTER, UNIQUE, SORT, LAMBDA, and LET automatically spill results and compute 5x to 10x faster.

🔵 Excel 2019 / 2016 Backwards Compatibility: CSE Array Formulas

Using INDEX + MATCH + AGGREGATE ensures files open cleanly across all departments without #NAME? errors.

❓ Frequently Asked Questions (FAQ)

Q1: Why does copying Excel 365 formulas to legacy Excel cause a #NAME? error?

Functions like XLOOKUP, FILTER, and LET are new calculation engines unique to Excel 365. Switch to the Legacy Compatible tab to copy compatible syntax.

Q2: What is a #SPILL! error and how do I fix it?

Dynamic arrays automatically spill results into adjacent cells. Clear cells below and to the right to resolve blockage.

Q3: Why does the LET function speed up large Excel workbooks?

LET(sales, SUMIFS(...), ...) evaluates heavy calculations only once, boosting recalculation speed by up to 500%.