I remember using a program called pc2am, that should be relative easy to get working.
Its on aminet, but it seemes that aminet is down at the moment.
Here is an alternative method that can be used if aminet.net is down:
This page have a search engine for aminet. The search will work even if aminet.net is down, but the links to the files will not.
http://amifind.platon42.de/Now, using the search above will give you the filename and a clue about which directory the file is located. The file itself can be downloaded from here:
http://ftp.wustl.edu/pub/aminet/Note that this is probably not a complete mirror because I, but you will find the pc2am 308 archive, and also a help-document named Share-Amiga2PC.lha