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Hello and welcome to XOOPS icky

am I right in assuming you want to allow people to download file packages like zip or tar ?
Have you installed the downloads module? In system admin go to the modules link and install the module. Configure and prepare your file packs for downloads. This will mean compressing them in their folders and uploading them to the appropriate directory on your server
BTW, you'll get all the help you want here, so visit the forum often! If this is not enough detail, come back and ask again.
Best regards Richard