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.

If you work with multiple Excel files over the course of a workday, and especially if you use a dual-monitor setup, you might wonder how you can launch each Excel file in its own window so you can ...

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 use Google Sheets, then you'll know that it is a versatile tool that can pick up and run with any existing spreadsheets from applications like Microsoft Excel. You can even convert existing ...

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 ...

How to quickly import a .txt or .csv file into Microsoft Excel Your email has been sent Data Growth Is Inevitable. So Is the 6x Cost Advantage of HDDs Why Warm Data Belongs on HDDs: A Smarter Approach ...

Spreadsheets created in Apple Numbers can be wondrous things, but opening them in Excel on a Windows PC is something of a headache. It can be done, though, with a little help from iCloud. In this ...