Hello there, @kimkdep.

Let me join the thread and help you get into your file.

The QuickBooks Desktop 2017 has already been discontinued. That's why the system prompts you that your file is out of date and you must update it.

If you have a back up copy of your company file, you can restore it on your QuickBooks Desktop 2017 account. You may also consider upgrading to the latest version to continue using the product.  

For detailed information about our service discontinuation policy, here's an article that you can read: QuickBooks Desktop service discontinuation policy.

Feel free to post again or comment below if you have further questions accessing your file in QBDT. I'm always here to help. Keep safe.