Using Turbotax 2020 on an OS 7 system

Have used Turbotax Home and Business for 10 years and all that data is stored on my hard drive using OS 7. Latest TTHB version (2020) no longer operates with OS 7. Unfortunately I also use Quickbooks 2014 which will not operate under OS 10 (Thank you Intuit) so I cannot upgrade. Any suggestions on how to work around this issue and continue to use my existing software.