Title: File Type Error: application/octet-stream
Last modified: August 22, 2016

---

# File Type Error: application/octet-stream

 *  [arcain6](https://wordpress.org/support/users/arcain6/)
 * (@arcain6)
 * [11 years, 10 months ago](https://wordpress.org/support/topic/file-type-error-applicationoctet-stream/)
 * Not really sure how to solve this.
 * Apparently, 7z files aren’t being recognized.
 * Tried adding
 *     ```
       add_filter( 'prso_adv_uploader_reject_mimes', 'prso_uploader_add_mime' );
           function prso_uploader_add_mime( $allowed_mime_types ) {
   
           $allowed_mime_types['7z'] = 'application/x-7z-compressed';
   
           return $allowed_mime_types;
           }
       ```
   
 * To the functions.php of my theme, but this still didn’t resolve the issue.
 * Any help with adding this mime type to the site would be appreciated.
 * [https://wordpress.org/plugins/gravity-forms-advanced-file-uploader/](https://wordpress.org/plugins/gravity-forms-advanced-file-uploader/)

The topic ‘File Type Error: application/octet-stream’ is closed to new replies.

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 * 0 replies
 * 1 participant
 * Last reply from: [arcain6](https://wordpress.org/support/users/arcain6/)
 * Last activity: [11 years, 10 months ago](https://wordpress.org/support/topic/file-type-error-applicationoctet-stream/)
 * Status: not resolved