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.
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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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