Hi!
Macropod gave me this macro 10 years ago. Still using it!

It changes all accented letters to non-accented letters. But I can't figure out how to modify it in order that spaces be replaced by underscore?
Code:
Function CleanString(StrInput As String) As String
'Enlève les caractères accentués d'une chaîne
'Auteur : Macropod 2011-04-01
Dim StrOutput As String, StrChr As String, i As Integer
For i = 1 To Len(StrInput)
StrChr = Mid$(StrInput, i, 1)
Select Case AscW(StrChr)
Case 192 To 197: StrChr = "A"
Case 198: StrChr = "AE"
Case 199: StrChr = "C"
Case 200 To 203: StrChr = "E"
Case 204 To 207: StrChr = "I"
Case 208: StrChr = "D"
Case 209: StrChr = "N"
Case 210 To 214, 216: StrChr = "O"
Case 215: StrChr = "x"
Case 217 To 220: StrChr = "U"
Case 221: StrChr = "Y"
Case 222, 254: StrChr = "p"
Case 223: StrChr = "B"
Case 224 To 229: StrChr = "a"
Case 230: StrChr = "ae"
Case 231: StrChr = "c"
Case 232 To 235: StrChr = "e"
Case 236 To 239: StrChr = "i"
Case 240, 242 To 246, 248: StrChr = "o"
Case 241: StrChr = "n"
Case 249 To 252: StrChr = "u"
Case 253, 255: StrChr = "y"
End Select
If StrChr Like "[A-Za-z0-9_]" Then
StrOutput = StrOutput & StrChr
End If
Next
CleanString = StrOutput
End Function
Thank you!
Souriane