How to Fix the ‘File Type Not Allowed’ Error in WordPress
Sorry, this file type is not permitted for security reasons. Same scene happens with CSV files, HEIC photos straight off an iPhone, AI files from your designer, and a dozen other formats people work with every day.
I've run into this enough times across client sites and my own projects that I stopped treating it like a problem and started treating it like a checkbox setting WordPress just hides from you by default.





