Allows site to upload PDF but not other file formats

Hello

Your plugin suits my needs perfectly for customer file uploads, however, my client needs the ability for customers to upload non-standard file types including corel draw files (.cdr), Encapsulated Post Script(.eps), Adobe Illustrator(.ai) in addition to PDFs. PDFs currently go up fine and are retrievable in the admin.

Do you know of any config settings, either at the server level (running Centos 7 linux) or within WP (latest version) that I may have missed or is the plugin limited to standard files?

Thanks
lk