Its not another company's tax return its turbo tax only and file has .taxbak extension itself that's the file generated automatically when I submitted return. I do understand its looking for .tax2019 format so I tried to renamed the extension manually to see if that works.
Also, in my PC no where I could find .tax2019 format file. When it prompts for error, it also suggest to use backup file, the link provided in error screen to find instructions how to get backup file also broken link. I dont know from where to get backup file now. Error code 102345.
