Microsoft has updated Excel to allow developers to programmatically create their own custom data types in the popular spreadsheet program. This update isn't aimed at Excel-using business execs but ...

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Data validation in Excel lets you restrict what can be entered into a cell, whether whole numbers, decimals, dates, or a certain number of characters. However, one of the most powerful capabilities of ...

Number formats in Microsoft Excel define how data is displayed in your spreadsheet without changing the underlying values. As well as using number formats to present data as dates, times, percentages, ...