I am no expert but what I know from experience that would be like asking to run MS SQL 2000 on Red Hat Enterprise server...
IMPOSSIBLE... why you ask?
2 different operating systems, 2 different file systems, Plesk for Linux is in no way structured like Plesk for windows, not to mention naming conventions.
Plesk backup for windows creates a PSA file which essentially is a ZIP file. Therefore if you were to rename your .psa file to .zip and extract, you could see all the contents of the backup file, including the databases (MSSQL not MYSQL).
It could probably be done with a lot of work and manual effort. Hope that helps