help needed for automatic update of footer

[sanju71821]

hello Friends,
I needed some help out here.

I want to make a footer which can keep updating the serial number everytime a new word document is opened up...
For example i want that footer to be named as
XXX/XXXX/XXXX/21 (XXX is for example say my company/department name). Now every time i open up this template i want the number to change automatically (to say 22, 23, 24 and so on).

I hope i am clear on explaining my issue..
is this possible to do on word and ppt?? if yes pls help.

Thank you very much!!!