Error: CSV file failed to upload

GravityImport allows CSV file uploads automatically, even if your WordPress site restricts certain file types. If you're seeing this error, try the following troubleshooting steps.

Error message

Security warning from WordPress when uploading a CSV file: CSV file failed to upload. Sorry, this file type is not permitted for security reasons.

1. Make sure GravityImport is up to date

Older versions of GravityImport did not override WordPress MIME type restrictions. Update to the latest version by going to GravityKit > Products & Licenses and clicking Update next to GravityImport.

2. Check that your file has a .csv extension

GravityImport accepts .csv files. If your file has a different extension (like .txt or .xlsx), rename it or re-export it from your spreadsheet application as a CSV file.

3. Check the file size

Your server has an upload size limit. GravityImport displays the maximum allowed file size on the upload screen. If your CSV file exceeds this limit, you can:

Split the CSV into smaller files
Ask your hosting provider to increase the upload_max_filesize and post_max_size PHP settings

4. Check for hosting-level restrictions

Some hosting providers block CSV uploads at the server level (outside of WordPress). If updating GravityImport and checking the file size don't resolve the issue, contact your hosting provider and ask them to allow CSV file uploads.