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, ...

Excel has plenty of built-in functions for calculations, but some of the most useful ones don't crunch numbers at all—they reveal information about your spreadsheet itself. The INFO and CELL functions ...

Get the latest info on new features, bug fixes, and security updates for Microsoft 365/Office 365 for Windows as they roll out from Microsoft. Now updated for Version 2509 (Build 19231.20216), ...

Here are some examples on how to add data validation to a worksheet. The following code adds a data validation to a range that only allows integer values between 1 and 5. The following code adds a ...

EPPlus supports formula calculation. This means that you can let EPPlus calculate the results of the formulas in a workbook. This is done by calling the Calculate() method, which is available on ...