Microsoft is adding a Compatibility Version system to Excel. This system should prevent new features and bugfixes from breaking old spreadsheets, though it may prove to be an annoyance for Office ...

The Excel Workbooks, Excel Add-ins, and screencasts on this site will be updated and corrected regularly so head there if you are merely looking for the latest versions of a file. As far as mistakes ...

Get up to speed with Microsoft Excel, the world's most popular spreadsheet program. Choose course based on your version of excel. Learn how to enter and organize data, perform calculations with simple ...