I'm looking for some guidance on how to approach an Excel add-in for Office 365 that is based on the Javascript APIs.
The purpose of the add-in is to allow users to customize their own excel file using data from their account on a website. The data would be something as static/simple as a Company Name or it can be something more variable such as "All Contacts" for that company.
What is the best practice in approaching a solution of pulling in external data, including data that would vary from company to company since some company records may have 4 contacts to display while another may have 10.
