Sorry, this file extension is not permitted for security reasons

I do not have any extension limit set, but the upload widget still does not allow me to upload any spreadsheet. xls, csv, xlsx all do not work, PDFs are fine though.

I have added the following into wp-config: define(‘ALLOW_UNFILTERED_UPLOADS’, true);

Gravity Forms is not preventing those uploads. It’s either WordPress or something on your server (like a security module.) I would first try eliminating any WordPress restrictions using a plugin such as this one:

Let us know how that turns out. Thank you.

This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.