Are you a member of the Passiv Haus Trust and/or IPHA ? Do you have access to passipedia.org ?
If so, you can access a new Climate Conversion PHPP Tool for PHPP.
This tool provides a template in order to automatically convert PHPP climate data between PHPP version 9 to PHPP version 10 and vice versa.
Just login to your account and you can download the tool for free. Click here to get going !