Excel macros for interprocess communication
 

Hi all,

Is there a way to use .Net remoting via Excel macros?. I want to do is
if a particular cells in the excel file changes, my .Net applicaiton
need to be notified about this. Is there any other way of interprocess
communicatin between excel and my app? All i need is my application
loads a excel file to read data but if the excel file is change
externally by any other process or user, i need to be notified so that
my application needs to reload the data. Any help would be great help