' Replace into string
Sub TestMe() Debug.Print Replace("a,B,c,d,e", ",", "-") 'a,B,c,d,e -> a-B-c-d-e Debug.Print Replace("Mr XXX", "XXX", "Bond") 'Mr XXX -> Mr Bond Debug.Print Replace("a,b,c,d,e", ",", "-", 3, 2) 'a,B,c,d,e -> b-c-d,e
End Sub

'VBA function to replace a substring... if it exists in the full
'string. Checking to see if it exists is very quick. Replacing is
'slow by comparison. So it is wise to check first:
Function IfInReplace$(s$, substr1$, replacement$, Optional CaseSensitivity = vbTextCompare) If InStr(1, s, substr1, CaseSensitivity) Then s = Replace(s, substr1, replacement, , , CaseSensitivity) IfInReplace = s
End Function
'---------------------------------------------------------------------------------------------------
MsgBox IfInReplace("abc123def", "123", "") '<--displays: abcdef