Learn how GROUPBY passes both subset and full arrays into LAMBDA in Excel, letting you compute percent shares fast and explain results clearly.

The SUBTOTAL function in Excel is a powerful alternative to SUM, AVERAGE, and MIN, particularly when working with filtered data or hidden rows. Unlike SUM, SUBTOTAL adjusts dynamically to display only ...

Pivot table can sometimes cause Excel to hang or crash, due to invalid attributes/elements on subtotal functions. EPPlus does not clean up conditional formatting items correctly in all cases.

If you use Excel 40 hours a week (and those are the weeks you are on vacation), welcome to the MrExcel channel. Home to 2,400 free Excel tutorials. Bill "MrExcel" Jelen is the author of 67 books about ...

Microsoft’s new Copilot function in Excel lets users generate, analyze and explain data directly from cell formulas, marking a major step toward full AI integration within spreadsheets. Microsoft’s ...

When the Design Mode button in Excel’s Developer tab is greyed out, it’s usually because the feature has nothing to act upon or needs a simple action to activate it. However, there are other reasons, ...

Certain Windows 365 Copilot users now have access to a new feature in Excel that lets you use Microsoft's Copilot AI to generate formulas, but you might want to be careful how you use it. Microsoft is ...

A new COPILOT function in Excel lets you use AI in a formula. The new skill is now available to Microsoft 365 insiders. Reduces some of the complexity involved in creating formulas. Get more in-depth ...

Q. Traditional PivotTables have always intimidated me. I see there is a new Excel function called PIVOTBY. What is the difference between it and the traditional PivotTable? With the PIVOTBY function, ...

Q. Are there any alternatives to traditional PivotTables in Excel? A. The first thing that comes to mind is the function GROUPBY. The primary purpose of GROUPBY is to make data analysis easier by ...