Running Macros from a separate Workbook

Hello geeks

This time, I came to you guys with another challenge.

Our department receives weekly and fortnighly updated workbooks from a number of different departments. Each workbook contains 10s of worksheets. Our department analyzes the data and generates reports from those worksheets.

I have developed a few macros to automate the report generation for making the computing of my colleagues easier.

Now, the problem is that all the macros are developed behind individual sheets and some modules. For this reason, my colleagues have to copy each updated sheet and paste over the older ones individually, each and every time. It is really quite time-consuming task - deleting older data from all the worksheets and then copying fresh data on each of them, one by one.

They want to make their life easier by just replacing the entire workbooks with the new ones and still want the macros functioning, as usual.

My concern is how I can put all the code in a separate workbook and how to reference data from the other workbook.

Or if there is an entirely different solution, please suggest.

Please help me in resolving this issue.

Regards,