Installing Desktop Pro 2023

It's our pleasure to receive your first post in the Community forum, @slatt. I'll share some insights about your company files so it works on your new version of QuickBooks Desktop Pro (QBDT) and ensure you can continue to manage your business. 

Yes, you can move your three company files from the old computer. As Fiat Lux - ASIA stated, open the files using your QBDT 2021. Create a backup copy for each company file and copy them to your new folder. Restore the files on QBDT 2023, which will have a new location. Then you can delete company files in the older folder. 

When you restore, QuickBooks uses the backup company file (.qbb) to create a new company file (.qbw). Once done, follow the steps below to restore the company file.

1. Let's ensure all users are logging out of your company file.
2. Open your new version of QuickBooks Desktop, 
3. Once done, open the newly installed QBDT and click Open or Restore Company or go to the File menu and pick Open or Restore Company.
4. Tick the Open a company file and click Next.
5. Locate the company file, then choose Open.
6. Log in as admin and hit Update Now to start the upgrade.
7. Once finished, select Done.

For more information, while upgrading your QBDT files, you can check out this article: Move your company files after you switch to a new version of QuickBooks Desktop. 

You might visit this article to learn about company file compatibility to avoid issues and errors: Company files compatibility with QuickBooks Desktop when upgrading.

If you have any other questions while restoring or handling your company files, let me know by adding a comment below. I'm more than happy to help. Have a good one!