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.

An XLS file is the native spreadsheet file type for versions of Microsoft Excel prior to Excel 2007. A QIF file is a Quicken Interchange Format file. The QIF file format was originally established by ...

If you cannot open the Excel file from its location, simply open any Excel file and click the File tab. Then, go to Open > Browse and select the file giving error ...

Using Excel's number format tool means you can ensure your spreadsheet both looks the part and handles your data exactly how you want it to. In this article, I'll explain what each number format is, ...

Have you ever sent an Excel file to a colleague, only to realize they couldn’t open it because of compatibility issues? Or perhaps you’ve spent hours perfecting a spreadsheet, only to see its ...