If you have already finished the piece and woven in the ends:
Gently pull the working yarn to "pop" the bind-off stitch out, then place the newly freed live stitch back onto your left needle. Removing a Bind Off
: Carefully pick out the woven-in tail using a tapestry needle. If you have already finished the piece and
If the working yarn is still attached, you can "tink" (knit backwards) more easily: Removing a Bind Off