Also having this problem, we have to revert back to an earlier version of the plugin (i believe we use 2.2.13 for this reason).
We need to be able to export the redirects prior to uploading.
Currently there is no way to revert back easily if imported redirects cause problems. In the past we could export all redirects as a back-up, import the new spreadsheet, and if it failed we could easily delete all the redirects and import the archived spreadsheet.
This would be great to have an answer to, I just need to export our existing redirects as well. Thank you!
I pulled down a copy of existing redirects by exporting directly from my WP database. In pHpMyAdmin, click on your database, then on wp_redirection_items. Then click on the browse tab, scroll to the bottom of the page and click export. Choose Excel and viola, bob’s your uncle.
I have done an import with this plugin, and all I used was 2 columns in a CSV file. First column was 404 URL without the domain (eg. /somefile.pdf) and second column was the redirect URL (eg. http://www.yourdomain.com/newfilename.pdf).
Cheers!
