Is there a Msft Word/Excell app for the I-Phone?

Hello All, I want to know if there is an app that would allow me to Use Msft Word/Excel on my I-Phone with the ability to view/edit documents and transfer them, via drop-box to my desktop/laptop computer? If the app could print wirelessly to my printer, that would be icing on the cake! Am I asking for too much? I have not been able to locate such an app and I am wondering if anyone within the Apple Vis community knows of such an app out there. Any recommendations would be greatly appreciated. Thank you for all of your suggestions. -Andrew-