How to put excel spreadsheet win7 gadget?

Hello friends,
How to put excel spreadsheet win7 gadget?
The Windows 7 desktop gadget can be viewed automatically in your desktop and can be considered as a shortcut for your important event calendar, clock and more.
I would like to add my Microsoft Excel spreadsheet application in the desktop gadget but how?
Please share some tips on how to perform the task.
Thanks and Regards,
Kyle Berry.
