Please Note: This article is written for users of the following Microsoft Excel versions: 97, 2000, 2002, and 2003. If you are using a later version (Excel 2007 or later), this tip may not work for you. For a version of this tip written specifically for later versions of Excel, click here: Tracing Errors.
by Allen Wyatt
(last updated October 2, 2018)
Suppose you have a worksheet in which there is an error (such as #VALUE! or #DIV/0! or #NUM! or any number of other errors), but you are not quite sure what caused it. As you may know, this is not that odd of an occurrence. It is possible (and sometimes common) to have a single error propagated throughout an entire worksheet. If you don't know where the error is coming from, the easiest way to find out is to follow these steps:
Excel tracks down the source of the error, using red auditing arrows. You can now make your corrections and get rid of at least one error in your workbook.
Excel 2002 and Excel 2003 have another handy way you can track down errors. If a cell contains an error value, the upper-left corner of the cell will have a small green triangle in it. If you select the cell, and information tool tip appears near this green triangle. When you click on the tool tip you see a menu that includes several different helpful suggestions, including an option to Trace Error. If you choose this option, you get the same result as if you followed the steps outlined above.
You should note that you can use the Trace Error auditing tool only to track down the source of obvious error conditions, meaning those that display an error condition such as #NA or #NAME. Subtle errors, such as adding together the wrong values or using the wrong function, cannot be detected by Excel and must be tracked down manually.
ExcelTips is your source for cost-effective Microsoft Excel training. This tip (3091) applies to Microsoft Excel 97, 2000, 2002, and 2003. You can find a version of this tip for the ribbon interface of Excel (Excel 2007 and later) here: Tracing Errors.
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Got a version of Excel that uses the menu interface (Excel 97, Excel 2000, Excel 2002, or Excel 2003)? This site is for you! If you use a later version of Excel, visit our ExcelTips site focusing on the ribbon interface.