Is there any particular reason you need them completely deleted? It might be more trouble than it’s worth but I think the best option would be some sort of google sheet add-on or a script. Here are a couple things I found with a quick search.
Is there any particular reason you need them completely deleted? It might be more trouble than it’s worth but I think the best option would be some sort of google sheet add-on or a script. Here are a couple things I found with a quick search.