Hi
Is there any manual about how to use download attribute type?

In the help it says "Download files from the product, e.g. manuals, data sheets etc." so I assumed that this is exactly what I need to provide some file downloads for product which is publicly available.

When I created this attribute, specified files on backend - everything was as expected. But in frontend it looks very strange:
string(34) "a:1:{i:0;s:16:"?A5H���}'s�";} (yes, not utf symbols, but file name is in English)

I just need to add access to the brochures for the product., and make sure that user can download file without any problems.