I need help to insert new lines in more than one sheet at a time.

This is my example - I have an Excel spreadsheet with 55 sheets, A, B, C, D,
E, etc. They all share / have the same formatted lines. I need to insert 5
lines in all 55 sheets in the same place on each sheet.
How can I insert those lines in all 55 sheets at the same time?
Or do I have to go to each sheet separately to insert those lines, a very
laborious prospect.

Thanks,
Marvin P Stein, CPA

305-667-1146