Hello there, davidli.
You can restore a backup of your company file. The data will be converted from older version to a later one. QuickBooks would update an older data for you. Also, please refer to the answer which our AllStar @qbteachmt provided above. It could definitely clear up your concern.
In addition, you can also refer to these articles:
Don't hesitate to get back to me if you need anything else.
