How to Reuse Code with VBA

What is the best way to avoid duplicating code when working in VBA?

I’m used to languages where I can just add an import statement and get access to all a class’s public properties and functions, so …

Beginning VSTO Development

I’m quite confused with what are the necessary tools for VSTO develpment. Specifically I want to manipulate Excel 2003/2007 documents programmatically. I did quite a lot of VBA before, if you want to …