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.
Excel's Format Painter button is seductive. It promises speed and efficiency, and for a quick fix on a handful of cells, it delivers. But once your workbook grows, the tool becomes frustrating, ...
The cells in a Microsoft Excel spreadsheet can hold various types of numerical data, including fractions and percentages. If some or all of your cells contain fractions, Excel enables you to convert ...
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Excel security is a myth: Passwords and hidden rows won't save your data, but this will
From hidden rows to sheet protection passwords, Excel's "privacy" features are easily bypassed—encryption and deletion are much more watertight.
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