If you cannot open an Excel file and see Excel cannot open the file because the file format or extension is not valid error, see this post.

This article will teach you how to change the date format in Microsoft Excel to have a uniform structure across your spreadsheet.

To convert DBF to Excel, firstly, open a DBF file in it and then if needed, edit the entries as required. Next, go to File > Save as option and choose an Excel format as output.

When you type a seven-or-ten-digit phone number into an Excel cell that uses the phone number format, Excel will automatically change the way the number looks so that it appears as a phone number ...

When you use Excel's Chart Wizard to create a chart, by default the chart takes on the number formats used in the worksheet that includes the charted data. Mary Ann Richardson shows you a way to ...

How to Format Fractions to Percentages in Excel. The cells in a Microsoft Excel spreadsheet can hold various types of numerical data, including fractions and percentages.