I know what the files are. They are copies of the same files in the %HOME% directory.
The problem is I can't delete, rename or otherwise change the owner / group back to their original.

The owner of .Xauthority is 1531901541 and the group is 1850683641.
The owner and group of OOICONS.tar.gx is similar number strings but different.
These owners and groups do not exist. They show sizes as 1.7Gb. They are definatley corrupt.

Access to both of these is restricted somehow. They have read-only permission.
Since the registered owners and groups don't exist, I can't remove,
rename or chown them even sudo or root. Not even in a console command line.

I have tried the Debian site and Google but no help.