Coupon Export then Import Errors

I have a large number of coupons that I needed to edit. I exported them using the plugin and then deleted them from my website, made changes to the CSV file and imported them all, but half of the information didn’t import including the usage (so now all my coupons are valid again and showing that there have been 0 uses) and the exclusions aren’t imported. So now I have a massive amount of coupons that have already been redeemed and yet are now valid again and they don’t have my exclusions in the settings. Please help ASAP!