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 ...

If you use Microsoft Excel on your Mac, you can save the spreadsheets you create and open them in Numbers, Apple’s spreadsheet app. It’s a handy feature to use in case you can’t access Microsoft’s ...

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 ...

You can use Excel to store, organize, and analyze data. Excel is Microsoft's spreadsheet program, a part of the Microsoft 365 suite of products. Here's a crash course in the basics of using Microsoft ...

You can open or import a surprising number of file formats into Microsoft Word. Not to be confused with file formatting, which—in most programs—refers to the design of a page, file formats are little ...