What are ".mxfindex" files and can they be deleted?
We recently finished a multicamera project in Premiere Pro using multiple Canon c300 MXF files. Now, we ready to archive the project. However, there are several copies of the original source media for backup and also second working set for our second editor.
At some point during the editing process, a number of ".mxfindex" were generated in the same folder as the original ".mxf" files. I can't seem to find any information about why or when they were created. I can confirm they didn't come from the camera by looking at my offload log from ShotPut Pro.
Now, we need to clarify which copies to save (or if to save them at all). Is it something like an ".xmp" file that's saving metadata? Is it a temporary file that can be regenerated?
I've reached out by phone several times to Adobe Tech support on the phone and nobody including the senior guys seem to know exactly what this is. I've gotten conflicting information about saying it's both "very important and will break the folder structure" and also "it's temporary and can be deleted." Help!
Any help or insight would be very appreciated. Thanks guys!

