File Extension MP3 Not Allowed

I see a minimum of two topics with the same question that has not been resolved within 9 months
https://wordpress.org/support/topic/file-extension-not-allowed/
https://wordpress.org/support/topic/file-uploading-not-working-in-google-chrome/
Server and wordpress allow to upload mp3 files. We upload mp3 for sale as products through Woocommerce, but your plugin Caldera Forms does not allow to add mp3.
Is it worth waiting for an answer? Or look for another plugin? Or uploading mp3 is available only in the paid version ?