It there a VFP function similar to FILE() that will return the date of the file, if the file exists?

I want to copy some files from a source directory to a destination directory, BUT
only if the source file either does not exist in the destination directory OR if it does,
the source file has a later (more recent) date than the file with the same name in the destination directory.

Yes, this is for a cheap back up program.

TIA

F. Bennett Swenson