This example illustrates the ISERROR function in Excel.

1. For example, Excel displays the #DIV/0! error when a formula tries to divide a number by 0.

Div/0! Error

The ISERROR function checks whether a value is an error and returns TRUE or FALSE.

2. Use the IF and the ISERROR function. If a cell contains an error, the value 5 is returned. If not, the value 100 is returned.

IsError Function in Excel

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