Hello, this is an accounting frim that a new client previous returns were done through Turbo Tax, but we have no way of accessing the file. Can it be converted to PDF/QB?

ok the client is sending us a bunch of .tax2012 -2016 files for all his entity. these files were created by his previous Accountant which he doesn't want to communicate with. all we need to know if we can somehow access this without having to purchase a software we don't use, we do use and have multiple license for QuickBooks Premier and fewer amount of Enterprise. we would appreciate any help you can give us to gain access. we are willing to upload the file so you can convert to PDF if that what it takes.