Microsoft Office Tutorials and References
In Depth Information
Using the IFERROR function
Figure 85-2: Using an IF function to hide error values.
You can adapt this technique to any formula. The original formula (without the initial equal sign)
serves as the argument for the ISERROR function, and it repeats as the last argument of the IF
By the way, you can put anything you like as the second argument for the ISERROR function. (It
doesn’t have to be an empty string.) For example, you can make it a cell reference.
Using the IFERROR function
If your workbook will be used only by people who have Excel 2007 or later, you might prefer to
use the IFERROR function. This function takes two arguments: The first argument is the
expression that’s checked for an error, and the second is the value to return if the formula evaluates to
an error. The formula presented in the preceding section can be rewritten as
Using this function has two advantages:
h Writing error-checking formulas is easier because IFERROR does the work of both the IF
function and the ISERROR function.
h The expression is evaluated only one time, which can result in faster recalculation times.
Keep in mind that because IFERROR was introduced in Excel 2007, it doesn’t work with earlier
versions of Excel.
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