I wrote an AutoHotkey script to import variables from a spreadsheet (well a csv file). The zip file includes the script and a sample CSV file.
I put the details on how to use it on my blog: https://philip.spigelmire.com/2016/12/28/using-autohotkey-to-import-opto22-pac-control-variables/
Let me know if you run into any issues, or have any fixes or upgrades!
AHK.zip (2.0 KB)
Edit 12/28/2016: Updated the script to prompt for the CSV file and some other improvements.
Edit 2/14/2017: Fixed an issue with duplicate variable detection in newer versions of PAC Control.