XLS files are Excel workbook files created in Excel 97 or Excel 2003. The 2007, 2010 and 2013 versions of the program use the XLSX format by default to save workbooks, but can also use the XLS format.

XLS is the default file type for Microsoft Office Excel files. It is compatible with nearly all programs that read spreadsheet files. If you are looking to manage your spreadsheets while you're on the ...

Compare the best free Microsoft Excel alternatives for 2026, including features, pricing, pros and cons, and use cases for ...

Spreadsheets: love them or hate them, they are a part of modern-day life and Microsoft’s Excel software is the go-to for most users spreadsheet needs. But what happens when you want to edit a ...

If you notice that your Excel files are opening in Notepad, then read this post to learn how to fix the issue. The default behavior of a document or file is to open in the application with which it ...

If you're still saving Excel spreadsheets with a three-letter .xls extension, you're lugging around a digital anchor from the era of dial-up. Beyond being a 1990s relic, these legacy files are slow, ...

How to recover deleted or unsaved Excel files from a hard drive Losing an Excel file can derail work fast. A teacher may lose ...

You can use three programs to convert DBF file to Excel file format in Windows 11/10: Convert DBF to Excel in Microsoft Excel Use DBF Viewer Plus to convert DBF to Excel Convert DBF to Excel using ...

This month's monster security patch for Office breaks Excel when it tries to open HTML files, and it seems unlikely Microsoft will fix the problem Excel users are reporting an odd bug in the way Excel ...

I'm hearing rumblings about some of our APAC users taking minutes at a time to load excel files over the network from the local file server. This seemed to start about 3 weeks ago, the troubleshooting ...