Old-school Excel functions like SUMPRODUCT, INDEX/MATCH, and IFERROR remain essential for stable, readable, and maintainable spreadsheets.
Applications
Built-in Excel slicer styles can’t be edited, but duplicating one gives full control over customization.
Excel PivotTables replace manual percentage formulas with built-in tools for totals, trends, and nested analysis.
Stop wasting hours on spreadsheet cleanup when AI can do it in minutes, and when you see...
Unlike one-off tools, Column From Examples records transformation steps so results remain stable as new data is...
Build a consistent visual system in Excel using cell styles, including customization, global updates, and workbook-wide reuse.
One of the best apps Google ever designed has gone unnoticed.
Master Excel’s most versatile logical gatekeeper to validate inputs, prevent math crashes, and automate complex spreadsheet decisions.
It automatically backs up all your configuration files and lets you rebuild them on new machines with...
At this point, I don't just self-host apps—I collect them.