I am using Excel 2010 32bit on a Windows 7 64bit system.

Is it possible to add a custom button to the FILE tab of the ribbon?

We want to add a button that runs a macro to save files into our document management system - the button would ideally be under the save button on the file tab and would say something like "save to doc manager"

I am aware of the ability to customise the ribbon in Excel 2010 but cannot find how to add buttons to the file tab, can I just re-iterate we need to customise the bit that opens on the left hand side when you click the FILE tab - not any other part of the ribbon.

can anyone point me in the right direction please? All help is greatly appreciated!!!