Ownership Percentages (1 Viewer)

I have done about 20 best ball drafts.  Used the draft dominator app for all.  Wondered how I can take the csv files from each, isolate my picks only and add them all to an excel file to determine ownership percentages.

Sat for 20 minutes the other night when Luck retired and Miller went down trying to figure out where I had em.  Yeah, I have issues!

Thanks for the help.