How can I pick all the files added in SharePoint given a new file is added every week?
The "Sharepoint command" action has the ability to list files. Once you have the list, you can used the "Iterate" action to pass them one-by-one as a parameter to another helper module which loads them and passes back the data.
If you get stuck, come back and let us know and we'll try provide an example.
Thanks Matt.
Let me give the iterate function a shot and ping here if I get stuck.
A good starting point to learn iterations is the tutorial article on iterations: EasyMorph | Loops and iterations