Batch file to print a batch of.plt files in reverse

I have been using this batch file that I created for about a year. It
is basically a one line command to print all files located in a certain
folder. All a user needs to do is to copy their plt files to this
folder and double click the batch file and they print (pretty
seemless). However, I got a request to modify it so that if users want
to - based on the names of the files they can reverse sort them so that
the bottom plt prints first. Below is a sample of my current setup. Any
suggestions would be greatly appreciated.

copy "M:\Plot file execution\Actual Plot files\*.PLT" /B
"\\Servername\Printer"
exit

It prints every plt located in the Actual Plot files Directory.