for i = 1 to len(mvcfile.filename)-1
if mid(mvcfile.filename,len(mvcfile.filename)-i,1)="." then
filetype = Right(mvcfile.filename,i)
exit for
end if
next
This is a simple way, if you run this loop with each uploaded file, it will start with the furthest right character and work backwards until it finds the "." in the name; and then take all characters to the right as the "file type".