Please guide me for the below described problem,
I have three Excel files [say A,B,C] in that we have some data in table with primary key.i want to merge those three Excel files in one Excel file containing all the table data from file A ,B and
C with their primary key and data should not be repeated with the same primary key .
For the above problem using ASP I want to create one program which should contain one “button on the displayed page and after clicking on that page “button this should be able to
Merge these three Excel files in to one Excel file.
Please guide me to develop this programe using ASP, I am a beginner of ASP ,I don’t have much idea about it.