The problem (for me!) is not new, but I have tried it again after starting BiaB 2020...

I have imported an .XML file named
mybabyjustdontcareforme.mxl

At first it apeared as a file with no icon in one directory of mine and trying to open it under BiaB
"open special" did not work, BiaB "not seeing" that file.

Then I "changed" it to a BiaB file, meaning a BiaB icon now apears with the file.The file stills has the same ending (.mxl)
BiaB does not "see it" any better under "open special"

Am I missing something?

It is, of course not crucial since I barely find .XML files to load, but just frustrating...
Bernard