add one or more characters to the end of all selected cells in excel

I am trying to change the formula in a selected area of an excel 2010 spreadsheet to include the expression iferror(*," ").  Where * is any expression currently to the right of the = sign.  In other words I would want to change =f8 to =iferror(f8," ").   I can figure out how to put 'iferror(' after the = sign by search and replace (and first puting ' in front so it doesn't execute, then getting rid of the ' once I am finished).  I can't figure out a way to tack the
expression ," ") to the end of every expression.  I assume some method using wildcards might work.  I don't really want to write a VB script.  But if thats the only way to do it, then I would be happy to listen to how to use that.
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dma70Asked:
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zorvek (Kevin Jones)Connect With a Mentor ConsultantCommented:
A macro to do the work:

Public Sub AddErrorHandling()

    Dim Cell As Range
   
    For Each Cell In Selection
        If Cell.HasFormula Then
            If Not Left(Cell.Formula, 9) = "=IFERROR(" Then
                Cell.Formula = "=IFERROR(" & Mid(Cell.Formula, 2) & ","""")"
            End If
        End If
    Next Cell

End Sub

Kevin
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zorvek (Kevin Jones)ConsultantCommented:
Wildcards won't help in this case since the replace function does not understand the notion of "include in the replace string the part covered by the wildcard character(s)".

You will have to use a VBA macro to do the work.

Kevin
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dma70Author Commented:
works great - thank you
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