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 XLR file is a spreadsheet file from the Microsoft Works software package. Microsoft Works has been discontinued in favor of Microsoft Office so it is not possible to obtain a new and supported copy ...

Does Excel open a Blank screen when you open an existing file? Microsoft Excel, for the most part, tends to work well, but there are times when it buckles and fails to perform even basic tasks. For ...

Microsoft today detailed an update to its Office for iOS apps that tightens the integration that Outlook has with Word, Excel, and PowerPoint. The new versions have been on Apple’s App Store since ...