When writing formulas in Excel, SUM and VLOOKUP are staples for beginners. But since Excel has over 400 functions, it's helpful to know more of the extremely useful ones, especially when looking to ...

Using multiple sheets in the same Excel workbook helps organize data into distinct categories. For example, you might have sales data for each of your four main departments on four separate sheets. If ...

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You can use the Sum function in Microsoft Office Excel to sum columns of data, whether your data is in an Excel table or is simply a range in a column of your worksheet. The sum of a column of zeros ...