Excel Macros Needed

I am currently writing out all of the algorithmic steps I need to be accomplished in Excel for my Amazon clients. I'm looking for someone who can convert these processes into simple Excel macros with parameter fields. Experience with Amazon and Amazon reports is preferred. Ultimately, the macros will be taking an output from Amazon, performing calculations on it resulting in another output which can then be uploaded back into Amazon.

1. What similar projects have you worked on before?
2. How comfortable are you with Excel macros?
3. Please put the answer to the following in the subject line: 2+5=?