Please Note: This article is written for users of the following Microsoft Excel versions: 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: Changing Error Checking Rules.
When Excel 2002 or Excel 2003 does background checking of your worksheet for errors, it follows a set number of rules. You can modify the rules that Excel follows through these steps:
Figure 1. The Error Checking tab of the Options dialog box.
ExcelTips is your source for cost-effective Microsoft Excel training. This tip (2370) applies to Microsoft Excel 2002 and 2003. You can find a version of this tip for the ribbon interface of Excel (Excel 2007 and later) here: Changing Error Checking Rules.
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Please Note:
This article is written for users of the following Microsoft Excel versions: 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: 
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