Excel and Google Sheets fixes.

Import data without losing IDs, make formulas return useful answers, and check the result before trusting a report.

Written steps + video

Choose a specific problem.

Each guide includes a fictional example, practice material, and a result to check. New guides appear here as they are published.

Thumbnail for Fix a Messy Excel Order ExportEP 01
Episode 01

Fix a Messy Excel Order Export

Fix a messy Excel order export with a sample workbook, a reviewed duplicate, an exact amount conversion, and a reconciled $1,015 total.

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Thumbnail for Keep Leading Zeros and Long IDs When Importing CSV to ExcelEP 04
Episode 04

Keep Leading Zeros and Long IDs When Importing CSV to Excel

A quick double-click can turn ZIP 02108 into 2108 and damage 17-digit reference codes. Practice with fictional data and check the result.

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Thumbnail for Stop Status Typos in Google Sheets With One DropdownEP 05
Episode 05

Stop Status Typos in Google Sheets With One Dropdown

Create a status dropdown in Google Sheets, then test that a misspelled value is rejected. Practice with fictional data and check the result.

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Thumbnail for Fix a PivotTable That Ignores New Rows After RefreshEP 08
Episode 08

Fix a PivotTable That Ignores New Rows After Refresh

A PivotTable still shows $300 after two sales lines totaling $100 were added. Practice with fictional data and check the result.

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Thumbnail for Find Missing Order Prices with Excel XLOOKUPEP 11
Episode 11

Find Missing Order Prices with Excel XLOOKUP

Match six fictional order SKUs to a five-item catalog with Excel XLOOKUP. Practice with fictional data and check the result.

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Thumbnail for Find Duplicate Order IDs in Google Sheets and Keep the Latest UpdateEP 14
Episode 14

Find Duplicate Order IDs in Google Sheets and Keep the Latest Update

A fictional order export has eight rows but only five unique order IDs. Practice with fictional data and check the result.

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Thumbnail for Highlight Overdue Excel Tasks Without Coloring Blanks or Done RowsEP 17
Episode 17

Highlight Overdue Excel Tasks Without Coloring Blanks or Done Rows

Make one Excel for the web rule that highlights overdue open tasks while leaving blank dates, today, future dates, and Done rows alone. Practice with fictional data and check the result.

Open the guide
Thumbnail for Sum One Month and Category in Google Sheets With SUMIFSEP 18
Episode 18

Sum One Month and Category in Google Sheets With SUMIFS

Calculate September Software spend in a fictional Google Sheets ledger using SUMIFS, a category criterion, and inclusive/exclusive date boundaries. Practice with fictional data and check the result.

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Thumbnail for Excel #SPILL! Error: Find the Blocking Cell Without Losing DataEP 22
Episode 22

Excel #SPILL! Error: Find the Blocking Cell Without Losing Data

Use a fictional status list to fix one common Excel #SPILL! cause: an output range blocked by an existing note. Practice with fictional data and check the result.

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Thumbnail for Google Sheets IMPORTRANGE #REF!? Fix Access and File TypeEP 23
Episode 23

Google Sheets IMPORTRANGE #REF!? Fix Access and File Type

Diagnose Google Sheets IMPORTRANGE #REF! by reading its exact message. Practice with fictional data and check the result.

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Thumbnail for Excel Formula Shows as Text? Check These 3 CausesEP 26
Episode 26

Excel Formula Shows as Text? Check These 3 Causes

See the difference between Show Formulas across a sheet, a cell formatted as Text, and a leading apostrophe. Practice with fictional data and check the result.

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Thumbnail for Filter a Shared Google Sheet Without Changing Everyone Else's ViewEP 27
Episode 27

Filter a Shared Google Sheet Without Changing Everyone Else's View

Use a filter view to isolate your rows in a shared Google Sheet without changing the ordinary filter for collaborators. Practice with fictional data and check the result.

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Thumbnail for Protect Formula Cells in Google Sheets While Leaving Inputs EditableEP 28
Episode 28

Protect Formula Cells in Google Sheets While Leaving Inputs Editable

Build a fictional three-row order sheet, put exact line-total formulas in D2:D4, and protect only that formula range while B2:C4 remains editable. Practice with fictional data and check the result.

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Thumbnail for Excel Dates Won't Sort Correctly? Fix Dates Stored as TextEP 31
Episode 31

Excel Dates Won't Sort Correctly? Fix Dates Stored as Text

Excel dates sorting A to Z instead of oldest to newest? Follow five fictional orders, prove the imported dates are text, convert them with DATEVALUE, and sort the entire table by real dates. Practice with fictional data and check the result.

Open the guide
Thumbnail for Google Sheets FILTER Says No Matches? Check Criteria and RangeEP 32
Episode 32

Google Sheets FILTER Says No Matches? Check Criteria and Range

A Google Sheets FILTER #N/A can mean the criterion finds no rows. Practice with fictional data and check the result.

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Thumbnail for Excel Formulas Not Updating? Check Manual CalculationEP 36
Episode 36

Excel Formulas Not Updating? Check Manual Calculation

Change one quantity in a fictional order workbook, identify a stale formula total, recalculate the workbook, and restore Automatic calculation. Practice with fictional data and check the result.

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Thumbnail for Excel SUM Skips Numbers Stored as Text: Fix the TotalEP 41
Episode 41

Excel SUM Skips Numbers Stored as Text: Fix the Total

Repair an Excel total that skips text-formatted amounts. Practice with fictional data and check the result.

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Thumbnail for Google Sheets: Calculate New Rows Automatically with ARRAYFORMULAEP 42
Episode 42

Google Sheets: Calculate New Rows Automatically with ARRAYFORMULA

Use one ARRAYFORMULA in Google Sheets to calculate line totals for existing and newly added fictional orders. Practice with fictional data and check the result.

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Thumbnail for Freeze a Google Sheets Report With Paste Values OnlyEP 50
Episode 50

Freeze a Google Sheets Report With Paste Values Only

Make a stable weekly report on a second tab of the same Google spreadsheet; prove its copied values do not change when source formulas recalculate. Practice with fictional data and check the result.

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Thumbnail for Excel Shows ##### Instead of a Date? Fix the Column WidthEP 51
Episode 51

Excel Shows ##### Instead of a Date? Fix the Column Width

Fix Excel cells that display ##### instead of a date or number.

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Thumbnail for Excel Dropdown Missing a New Item? Expand Its Source RangeEP 52
Episode 52

Excel Dropdown Missing a New Item? Expand Its Source Range

Add a new source-list item to an Excel dropdown in Excel for the web.

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Thumbnail for Split Names into Columns in Excel for the Web with TEXTSPLITEP 53
Episode 53

Split Names into Columns in Excel for the Web with TEXTSPLIT

Split comma-separated names into adjacent columns in Excel for the web with TEXTSPLIT.

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Thumbnail for Excel Formula Changes When Copied Down? Lock the Rate CellEP 54
Episode 54

Excel Formula Changes When Copied Down? Lock the Rate Cell

Keep a single tax rate fixed when filling an Excel formula down.

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Thumbnail for Excel Sort Mixed Up Your Rows? Keep the Whole Table TogetherEP 55
Episode 55

Excel Sort Mixed Up Your Rows? Keep the Whole Table Together

Sort an Excel order list by date without separating IDs, contacts, and amounts.

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Thumbnail for Color an Entire Google Sheets Row When Status Is DoneEP 56
Episode 56

Color an Entire Google Sheets Row When Status Is Done

Use a custom conditional-format rule to color a full row when its status cell says Done.

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Thumbnail for Google Sheets Split Text to Columns: Separate Name and EmailEP 57
Episode 57

Google Sheets Split Text to Columns: Separate Name and Email

Split a comma-separated name and email field into two Google Sheets columns.

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Thumbnail for Count Checked Boxes in Google Sheets with COUNTIFEP 58
Episode 58

Count Checked Boxes in Google Sheets with COUNTIF

Count completed tasks from Google Sheets checkboxes using COUNTIF with TRUE.

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Thumbnail for Repeat Header Rows on Every Printed Google Sheets PageEP 59
Episode 59

Repeat Header Rows on Every Printed Google Sheets Page

Keep column labels visible on every printed page in Google Sheets.

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Thumbnail for Sum Only the Visible Filtered Rows in Google SheetsEP 71
Episode 71

Sum Only the Visible Filtered Rows in Google Sheets

Use SUBTOTAL to total only visible filtered rows in a fictional six-order Google Sheet, then test East, West, and manually hidden rows.

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Thumbnail for Fill an Excel Formula Down Without DraggingEP 74
Episode 74

Fill an Excel Formula Down Without Dragging

Fill a line-total formula through four rows in Excel without dragging the fill handle, and check that relative references update correctly.

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Thumbnail for Fix VLOOKUP #N/A Caused by a Hidden Space in Google SheetsEP 75
Episode 75

Fix VLOOKUP #N/A Caused by a Hidden Space in Google Sheets

Diagnose an exact-match VLOOKUP that returns #N/A because a fictional SKU has one trailing space, then verify the corrected price.

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Thumbnail for Freeze the Top Row in Excel for the WebEP 77
Episode 77

Freeze the Top Row in Excel for the Web

Freeze the first row of a long fictional Excel list, check the header at row 35, and unfreeze it when needed.

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Thumbnail for Excel #DIV/0! from a Blank or Zero Cell? Check the DenominatorEP 81
Episode 81

Excel #DIV/0! from a Blank or Zero Cell? Check the Denominator

Find the blank or zero denominator behind an Excel #DIV/0! result, then show a blank only while a fictional production rate is unavailable.

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Thumbnail for Excel #REF! After Deleting a Column? Undo Before RebuildingEP 82
Episode 82

Excel #REF! After Deleting a Column? Undo Before Rebuilding

Reproduce a broken explicit-reference total on a disposable Excel copy, restore the deleted data with Undo, and verify the original total.

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Thumbnail for Excel Circular Reference: Fix a Total That Includes ItselfEP 88
Episode 88

Excel Circular Reference: Fix a Total That Includes Itself

Diagnose a self-including SUM range in a fictional Excel order sheet, correct the total formula, and verify every source row and the final sum.

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Thumbnail for Google Sheets SUM Ignores Text Amounts? Convert a Practice ColumnEP 89
Episode 89

Google Sheets SUM Ignores Text Amounts? Convert a Practice Column

Show why a Sheets total can miss numbers held as text, convert three controlled text values with VALUE, and check the exact 25-unit result.

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Thumbnail for Remove Duplicate Orders in Excel but Keep the Newest UpdateEP 91
Episode 91

Remove Duplicate Orders in Excel but Keep the Newest Update

Keep the latest status for each fictional order ID in Excel for the web by sorting the full data range before removing duplicates.

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Thumbnail for Find Missing IDs Between Two Google Sheets ListsEP 92
Episode 92

Find Missing IDs Between Two Google Sheets Lists

Compare two fictional ID lists in Google Sheets without assuming matching row positions, and identify records missing in either direction.

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Thumbnail for Excel XLOOKUP Shows One Order? Return Every Match with FILTEREP 95
Episode 95

Excel XLOOKUP Shows One Order? Return Every Match with FILTER

Use Excel FILTER to return all fictional orders for one client, confirm the three matching rows, and show a clear no-match result.

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