Build Excel workbook

When I enter each customers information in the “mail list” tab (for example 50 customers), and when I hit the “processing” button an individual workbook, with the 3 tabs (customer data, ranges, and graphs), will be generated for each customer. The workbook generated, for each customer, will then be attached to an email that is automatically generated. Thus, I enter the customer data in the “mail list” tab and click on “processing” and everything else is done automatically. This project will operate on a Mac running Office 365 - education edition.