Google Sheets named functions: build your own formula
Google Sheets named functions wrap long formulas behind one call. Build, debug, import, and know when a helper column wins instead. Read on.
Formulas
Google Sheets REGEXREPLACE: clean messy text columns
REGEXREPLACE in Google Sheets fixes messy text in bulk — strip junk, reformat dates, standardize phones. Patterns, ARRAYFORMULA, RE2 gotchas inside.
GOOGLEFINANCE in Google Sheets: pull live stock prices
Use GOOGLEFINANCE in Google Sheets to pull live stock prices, currency rates, and historical data, with the attributes and fixes that matter. Read on.
Power Pivot DAX measures for beginners, step by step
Power Pivot DAX measures confuse most beginners. Write your first explicit measure, fix wrong grand totals, and learn SUM vs SUMX. Start here.
Excel TEXTSPLIT: split one cell into multiple columns
Excel TEXTSPLIT splits one cell into columns or rows with a single live formula. See the syntax, multi-delimiter tricks, and how to fix #SPILL errors.
Excel dependent dropdown lists: INDIRECT, Tables, or FILTER
Build a dependent dropdown in Excel three ways: INDIRECT named ranges, Excel Tables, or the Excel 365 FILTER function. See which one fits your data.
A Beginner’s Guide to Data Validation in Excel: Ensuring Accurate Inputs
A beginner’s guide to Excel data validation — what it does, your first dropdown, simple number and date rules, friendly messages, and where to use it first.
How to Use IF Statements in Excel for Decision Making
Use IF statements in Excel for decision-making — basic IF, combining conditions with AND/OR, nested IF vs IFS, IFERROR, building flags, and the mistakes that tangle IF formulas.
A Comprehensive Guide to Data Validation in Excel: Preventing Input Errors
Advanced Excel data validation — self-growing dropdowns, cascading multi-level lists, custom-formula rules, validating imports, and layering validation with formatting and protection.
Exploring the Power of What-If Analysis in Excel
Excel What-If Analysis explained — Goal Seek to work backward to a target, one- and two-variable Data Tables to test ranges, and Scenario Manager to compare named cases.
How to Automate Your Reporting with Excel Macros: A Complete Walkthrough
Build an Excel macro that automates a monthly report end to end — format, export to a dated PDF, email it, and run the whole pipeline from one button (or on a schedule).
How to Protect Your Spreadsheet Data: Best Security Practices for Excel and Google Sheets
Protect spreadsheet data in Excel and Google Sheets — control access first, lock cells and protect sheets/ranges, encrypt files, hide formulas, and the security habits that matter most.