To convert an existing excel based VBA program to an excel add-in.
The VBA program currently performs the following functions:
1. Downloads historical stock price data from an internet site into excel
2. Performs calculations on the historical stock price & volume data to calculate various technical indicators
3. Plots these indicators on customised excel charts
I have attached a very simple excel add-in for reference - it illustrates the kind of functionality the add-in should have.