After trying a few other things unsuccessfully, I put the SD card back in the XC10, and a prompt appeared asking if I wanted to repair the file, the camera itself repaired the file! I can now import it to Premiere.
I started a recording on an XC10 at an event and did not stop the recording before the battery ran out. The file is 23gb .MXF between 90-120 min long. I cannot get it to play back in the camera or import into Premiere Pro. I tried to import it to Adobe Media Encoder to convert to possibly convert it to a different format, but that didn't work either. Has anyone encountered this problem, or had success making use of this type of file? Thanks!