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.

Despite recurring claims of 'Excel killers' and the rise of AI tools, experts point to Excel’s deep integration into enterprise systems, continual technical evolution, and entrenched global data ...

When Microsoft rolled out Office 2007, the company made some fundamental changes to its file formats, updating them from binary files to XML-based packages. The default format for Excel 2007 followed ...

Spreadsheets: love them or hate them, they are a part of modern-day life and Microsoft’s Excel software is the go-to for most users spreadsheet needs. But what happens when you want to edit a ...

When most users open Office 2007’s Excel—launched with Microsoft’s new Vista operating system—their first reaction is, “ Where’s the file menu? How do I begin?” This article is designed to help you ...

If the calculation option has been set to automatic, change it to manual. Doing so will also prevent the workbook from recalculating the values and this can make file accessible. For this, Click on ...