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.
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 ...
How-To Geek on MSN
Why your old Excel spreadsheet is 'legacy code' (and how to fix it)
Transform legacy spreadsheets into maintainable, automated tools that scale and survive the test of time.
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 ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results