Back up for Specific Period

Good afternoon, @mdavenport. 

It's great to see a new face here in the Community! 

I can see how backing up a specific period of time that's in the past would be beneficial for your business. However, you can only backup the whole company file (current data included). Review this guide for some additional details about using a backup: Back up your QuickBooks Desktop. 

You can submit feedback to our Product Developers so they can consider adding this in the near future: 

1. Go to the Help option.
2. Tap the Send Feedback Online option.
3. Select the Product Suggestion option. A pop-up window displays.
4. Enter your feedback suggestion.
5. Click the Send Feedback button. The feedback is sent.

I hope this helps answer your question. If you have any other questions, don't hesitate to ask. Take care! 

@mdavenport 

Use the Condense Data utility to do so.