I am starting Excel using Office interop from C# code in ASP.NET web
application. I also have Excel spreadsheet which using some 3rd party addin
library doing calculation and outputing the result to spreadsheet. I need to
open spreadsheet, pass data in input range, calculate and read data back from
output range. I can do everything, expect loading 3rd party library. As
Excel load I need it to be able to load all addins and libraries as it do
during interactive load.
Please advise