Need GetFileSize()

Need a Excel macro function to get the size of a file.
I have tried FileLen(), but does not seem to work.
I will be using it on mp3 files (large).

I first tried to get the size of a directory, but
had no luck there either.

Is this a case where I may need to do an add-on
to get this to work?

Thanks
Butch Meese
[EMAIL PROTECTED]