We recently were informed that one of our vendors had not received a 1099 form. We corrected this, sent the vendor thier 1099 and udated the IRS file and upload that file to IRS. Then the vendor informed us that they needed 1099s for 2011 and 2010. We sent the vendor those 1099s. Do we have to file a corrected file with IRS? How do we do that since we efiled originally? Do we email the whole file or just 1096 and the new 1099?