do I need to transcode???

Hello,

I'm cutting on Media Composer 8.5.3.  I have raw .XML file that I had uploaded through dropbox and then dropped into an avid 4k project bin.  I get the error message "the file format C0010M01.XML is not supported.  The test was to see if I need to have transcoded so I guess I do, ALTHOUGH I thought XML files were supported by Avid.

Can someone explain please?  I believe in the past when I have loaded XML files avid has turned them into quicktime files for use.

Thanks so much for your help.

LVETOLAF