Restore files without extension adds .Z

Hi,

We are currently evaluating Netbackup 7.7.1 and I found a strange problem I would need to fix.

The NB server is on windows 2012R2 and I use it to backup a Centos Linux Server.

On the centos machine, I have files without extension. For example, the file's name is "foo"

When I restore the files on windows the file's name becomes "foo.Z"

Why is Netbackup doing this ??? Can I turn that off ?

If not, can I assume the extension will always be ".Z" ?

By the way, this happens only when I restore to a windows machine, if I restore to the initial location the file's name is not altered.

Thanks a lot in advance