Depends what you mean with "fill another spreadsheet when I start filling"
Once you have filled, it is easy, fill simultaneously, I don't think so. To
create the other sheet, you would use a macro, and to copy your info across,
you would still use a macro. If you do not know about macro's, you have some
studying to do, but not that difficult once you grasp it.

"HumbleStudent" wrote:

Is it possible for Excel to create and fill another spreadsheet when I start
filling the row of an existing one? If so, can someone point me in the right
direction?