Run a macro inside to an excel file without opening excel program

I have an excel consists of 10 sheets.


Each sheet uses XML feed data connections as tables.


Inside there is a macro - to update the XML databinding and to remove duplicate items.


But, because of size and processing problems it's becoming very difficult for me to keep open excel file always.


I have googled as much as possible but confused all the way!


Can any one help me "how to run update macro inside my excel" from any where with some simple command like CMD - run command.


I don't mind whether it is C#, .Net (sorry for third party tools)!


Thanks for your time and efforts!