import the updated excel value to database

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C#

SQL-Server

SQL-Server-2008

, +

Hi all,

I have a large amount of data in a excel sheet which has about 2000 rows. I have imported the table in sql server with no error.
I have to modify the excel now and update the same changes in the database also.
I cant delete the table and import again since i have large amount of data and have extra columns added to it.

So Please help me how to update the new values along with the existing values. I use C#.Net.

Thanks,