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.

Hamza is a certified Technical Support Engineer. The ‘Excel Cannot Open the File’ error usually occurs when attempting to open an older Excel file with a newer ...

Microsoft Excel is one of the most widely used tools when it comes to data analysis, management, and accounting operations. This software allows users to create, edit, and save spreadsheets. However, ...

Businesses that switch to Mac computers may encounter problems when attempting to open some file types, such as Excel Spreadsheet (XLS) files. Macs do not have a native program for opening XLS files, ...

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 ...

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 ...

The xls file should open as a Spreadsheet. This doesn't happen with all XLS files, just some. Unfortunately, I cannot share the example file this happens with. Excel warns me that the file format and ...

While it is technically possible to open an Excel file in Notepad, this is not a good idea. Excel files are binary files that contain complex formatting and data structures. When you open an Excel ...