When it comes to error checking in Excel, there are a few different rules that you can change in order to make the process more efficient for you. By default, Excel will check for errors in cells that are adjacent to each other. However, you can change this setting so that Excel only checks for errors in cells that are within a certain range. Additionally, you can specify the types of errors that you want Excel to check for. For example, you can choose to have Excel only check for #DIV/0! Errors, or you can choose to have it check for all types of errors. To change the error checking rules in Excel, follow these steps:

1. Open Excel and click on the File tab.
2. Click on Options and then select Formulas from the list of options on the left-hand side.
3. Under Error Checking Rules, select the type of error that you want Excel to check for. You can choose from a list of options or select Custom to create your own custom error checking rule.
4. If you selected Custom in the previous step, then specify the cells that you want Excel to check for errors. You can do this by selecting the Range option and entering a range of cells, or by selecting the Worksheet option and choosing which worksheet you want Excel to check.
5. Click OK when you are finished.

Now when you open up your workbook, Excel will only check for errors in the cells that you specified. This can save you a lot of time if you have a large workbook with many different sheets. Additionally, if you know that there are certain types of errors that occur frequently in your workbook, then specifying those types of errors will help Excel to find them faster.