Did you try working with the tokens syntax? Try something like this, assuming that you use comma as a delimiter in your csv. And when running in batch, the variables need 2 %
FOR /F "tokens=1-2 delims=," %%A IN (C:\Documents\FilterOptions.csv) DO tabcmd export "/MilageRankings/MileagePerformance?Year=%%A&CarModel=%%B" -pdf -pagelayout landscape -f "C:/TestPDF - %i.pdf" --no-certcheck
/MileageRankings/MileagePerformance?Year=%i&Model=%j once you've figured out how to get the j token out of the FilterOptions.csv file
I only needed 1 "%" and that seemed to work! Thank you!