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.

Upgrade from standard Excel workbooks to specialized formats that shrink, shield, and streamline your spreadsheets.

Excel files bloat from ghost used ranges, formatting, pivot caches, and images. These quick fixes massively cut the size of ...

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 ...

System administrators and power users utilize Windows PowerShell to perform all sorts of advanced and administrative tasks. With PowerShell, administrators can execute powerful scripting programs or ...

Here is a tutorial to convert CSV to XLS or XLSX using the command-line interface in Windows 11/10. There are multiple ways to convert a CSV file to Excel formats (XLS, XLSX). You can use Microsoft ...

Excel files are super useful for organizing data. But sometimes, they get messed up and stop working. That's a big problem because we might lose important information. Luckily, online tools can help ...

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 ...