Rixon,

I think this code may accomplish what you need, you should only have to modify the first two lines.

cd && to the directory you wish
SET PATH TO && to the same directory
llReplaceName = .F.
FOR i = 1 TO ADIR(laOldFileName)
lcNewFileName = laOldFileName(i,1)
FOR j = 1 to LEN(lcNewFileName)
IF SUBSTR(lcNewFileName,j,1) = " "
lcNewFileName = LEFT(lcNewFileName,j-1) + "_" + ;
SUBSTR(lcNewFileName,(j+1))
llReplaceName = .T.
ENDIF
NEXT
IF llReplaceName and NOT FILE(lcNewFileName)
RENAME laOldFileName(i,1) TO (lcNewFileName)
llReplaceName = .F.
ENDIF
NEXT
SET PATH TO



Hope It Helps