Auto Archive & Drop Down Macro Query

Hi All,
I am new and this is my first post!
I am having a significant amount of difficulty trying to get a couple of things working in excel. Firstly I would like to run a macro from the selection of a drop down box value...is this possible?

Secondly, I would also like to 'do something'! that allows the data within a sheet to be archived weekly.... so that the original sheet then turns blank but the data from the previous week has been archived for reference?

Any advice is gratefully received, any VB instructions step by step please...!
Many thanks
Andy

Your post does not comply with Rule 1 of our Forum RULES. Your post title should accurately and concisely describe your problem, not your anticipated solution.

Use terms appropriate to a Google search. Poor thread titles, like Please Help, Urgent, Need Help, Formula Problem, Code Problem, and Need Advice will be addressed according to the OP's experience in the forum: If you have less than 10 posts, expect (and respond to) a request to change your thread title. If you have 10 or more posts, expect your post to be locked, so you can start a new thread with an appropriate title.

To change a Title on your post, click EDIT then Go Advanced and change your title, if 2 days have passed ask a moderator to do it for you.

(This thread should receive no further responses until this moderation request is fulfilled, as per Forum Rule 7)