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.
Spreadsheets that contain complicated formulas and a lot of data can take a while to load when you open them in Excel 2007, but that's not the only reason spreadsheets can be slow to load. Microsoft ...
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 ...
A missing Excel file isn’t always the disaster it feels like.
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