You don't necessarily need Microsoft Excel to work with an .xlsx file Reviewed by Ryan Perian This article explains what XLSX files are, how to open them, and which programs are able to convert ...

Use these free online tools and software to convert VCF to CSV or Excel (XLS, XLSX) file format on your Windows 11/10 PC.

Simply put, .xlsx is a file extension for the open XML spreadsheet used by Microsoft Excel from 2007 onwards. Why the change in format from earlier versions of Excel?

Versions of Excel starting with 2007 use XLSX files, but can still read and write XLS files. If you want to convert up to XLSX, load the XLS in Excel and re-save it again using the "Excel Workbook ...

Editing Microsoft Office files in Google Docs is a pain. You can view them there, but you’ve previously had to convert them to Google’s format before you could edit, comment, and collaborate ...