I have a very small company and I've been using Quickbooks 2009 Premiere. I'd like to upgrade it and move it on to my MAC using Quickbooks 2019 for Mac. Can this be done? I'm not really interested in moving to QBO
You'll likely need to upgrade a few years on the Windows side first, there are trial versions available for that. Run the verify and rebuild utilities then copy the company file for Mac, you should find that under utilities. Move that file to the documents folder on your Mac. Open the file with QB Mac and run the verify and rebuild utilities again.