>I can easily create an field General type and put a file on it. Can I do the opposite ? Take the content from the general field and transform it to a file ??

There is no built-in command for that AFAIK. However in one of KB it was documented how to get it. What you do is :

copy a single record (with gen field you want to get) to a temp table
read and write out from .FPT byte offset 579

I don't know where that magic 579 comes from really and not always what you get is the original copy. Works anyways.

Cetin