READ Specific word or line in ASP.NET thru C# or VB

I am working on one file which is .html file and the backside code is xml. Now I want to read specific line with the specific word, how its possible.
I'll try to explain in example so its easy for your understanding.

File is like this (output of html) file TOTAL REPORT FOR ABC BRANCH
Grocery             30,000 Bakery               20,000
Total                 50,000 Discount               -300

Net Sales           49,700 
-----------------

Now i need only Net Sales line but the top data is always changing.