How to transfer files in winbox wine under OSX

I want to contact support for help but they say I need a supout.rif file to attach to the support email. While under windows copying this file onto desktop is basically drag and drop, I’m not sure how to do this when I run winbox under wine. Is there another way to do this?

you can’t drag 'n drop with the combination of wine and winbox. You can copy the file with sftp or ftp. If you have webfig access, you can download from it.

FYI: With windows virtualized on parallels you can use drag’n drop

Regards
M.