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Excel Formula Efficiency 8: Custom VBA Function Can Be Fast

See how a custom Function (User Defined Function) can speed up calculations. See how to copy VBA code from an online source; go back to Excel and open the VBA editor window with Alt + F11; insert, module; paste VBA code.

USER Defined Function

COUNTU custom function counts unique values in a list.

Learn how to speed up slow calculating spreadsheets with formulas that calculate faster. See many methods to speed up your spreadsheet decrease the amount of time it takes for the formulas to calculate. The tricks you see are from a White Paper called Improving Performance in Excel 2007. In this video series you will see tricks for both Excel 2003 and Excel 2007. Many of the large formulas in this series involve multi-conditional multiple criteria calculations that slow down the spreadsheet (worksheet, workbook).

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