Hi there, @dstrickland018.
Thanks for reaching out to us here in the Community. I can help transfer your QuickBooks Desktop (QBDT) for Mac data from 2010 to 2019 version.
You can follow the steps below to transfer your QBDT for Mac company file to a newer version:
1. Launch your new version of QuickBooks Mac Desktop.
2. Select File, then pick Open Company.
3. Browse to your data file, choose your company file and click Open.
4. Read the info on the upgrade dialog, then pick Upgrade to open.
5. Log into the company file as the Admin user, then select OK on the following dialog stating the file has been upgraded.
6. Once the file is upgraded, you'll need to:
a. Store the backup you created in a safe location until you are certain you won't need it again.
b. If you copied the data file from another computer to upgrade it, copy it back again.
c. If you cannot find your data file in its original location and if it is not in the specified folder, search your hard drive for *.qb*, which will find all QuickBooks Company files.
For future reference, you can also check out this article for further guidance: Upgrade or convert your company file to a new QuickBooks Desktop version. Just in case you need it, you may visit this article for more information about QBDT for Mac 2019: What's new in QuickBooks Desktop for Mac 2019.
That should do it! Please let me know how it goes or if I can be of additional assistance. I'm only a post away if you have any follow-up questions. Take care and have a good one!