Copy - paste between desktop excel file and web embedded excel table

Hello,

Grateful if you guide me to solve the following problem:
I'm trying to automatically copy data from a range of cells from a desktop Excel file to an Excel table embedded on a website, by pressing a button on the desktop excel file. The embedded table is hosted on MS Skydrive. Then, during the same session, I want the calculated data from a range of cells of the web embedded table to be copied on the desktop Excel file. The web embedded table can not be downloaded, nor can it be fully opened, but it can be directly edited on the website.
Do you think it is feasible? Can anybody give me some hints?

Thanks in advance,
Gabriel