creating an excel add-in

can someone please get me started on the following:

i would like to开发者_开发百科 package an excel macro as an add-in to excel. the macro will reside on a central computer, where 10 other computers will connect to.

how do i create an add-in that will be constantly updated ?

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According to this you can have an Add-In reside on a network share, so you wouldn't even need to bootstrap and update the code via code. Here's a quick rundown on how to create an Add-In.