Hey there, @Frank10553. 

Thanks for joining in on this thread. Let me share some insight into only moving five years worth of data when upgrading. 

The only available option that would be close to your request would be to use the Condense Data feature. Review the guide below to learn more details: 

Create new company files from existing ones in QBDT

For future reference, check out this link: Update QBDT to the latest release. 

Feel free to come back if you have any further questions. I'm only a post away if you need me again. Take care!