Archive | Eamonn Cottrell

The Free Voice App I'm Using Right Now

Eamonn Cottrell

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Mar 6, 2026

Google Sheets

One formula to create a running total column

Eamonn Cottrell

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Feb 26, 2026

Products

I Fixed Google Sheets

Eamonn Cottrell

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Feb 12, 2026

Excel

Claude in Excel

Eamonn Cottrell

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Feb 4, 2026

Google Sheets

Stop Forgetting Birthdays

Eamonn Cottrell

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Jan 28, 2026

Google Sheets

When to use ARRAYFORMULA

Eamonn Cottrell

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Dec 19, 2025

Excel

Group Rows and Columns

Eamonn Cottrell

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Dec 12, 2025

Google Sheets

Formula for Duplicates

Eamonn Cottrell

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Nov 13, 2025

Google Sheets

Dummy Data and How to Get It

Eamonn Cottrell

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Nov 6, 2025

Google Sheets

Clean Messy Cells

Eamonn Cottrell

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Oct 23, 2025

Hyperlink Table of Contents

Eamonn Cottrell

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Oct 15, 2025

I Wrote a Book

Eamonn Cottrell

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Sep 26, 2025