You asked: "If i'm filing efile returns how do I attach my w2 1099?"
With electronic filing you don't have to "attach" a W-2, 1099, etc. You merely enter the info into the return. The IRS will get its copy of the W-2, 1099, etc. from the source that provided it.
The beauty of electronic filing is that nothing has to be attached or mailed in the vast majority of cases, with a few rare exceptions like the 1099-B option I mentioned in my next comment below.
