Excel IsError VBA Function

IsError VBA Function: Has a Custom Function Produced an Error?

The Excel IsError function is used to determine if a custom function has produced an error.  The custom function
is already pre-defined in a module and you would insert it within the IsError parenthesis.

IsError Example:

Dim FindError As Boolean
FindError = (CustomFunction())
'Your custom function is executed and if the results produce an error, FindError
will equal False

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