|It's hard for us to answer your question without some more details. |
You say you "need to do every month". Do what every month?
We don't know what formulas you are using, we don't know what your data looks like, we don't know anything about your spreadsheets that we can use to help answer your question.
You need to provide a lot more information related to what you are trying to do, how you are trying to do it and what you expect the results to be.
If you are going to post any examples of your data, please click on the following line and read the instructions on how to post data in this forum.
Click Here Before Posting Data or VBA Code ---> How To Post Data or Code.