access a single value from list

I am very new to C#, I hope this is a simple question but I have not been able to find the answer, Thank you for any help you are able to provide.

I have a list of items pulled from a database.

public List<ListModel> my List

This is pretty much 3 columns of numbers

Header1 Header 2 Header 3
1               2               2
1               2               2
3               3               1
1               2               3


I would like to place those values into a html table in various cells. I cant build the table in a foreach as the values may need to be spread out in a non repeating manor .

In other languages you could access an array by myArray [1][2] , How can this be done in in a list I am passing from a controller to a view?

Thank you