From the examples they have given in that project, Read example 2 has this snippet
var rows = worksheet.Rows.ToArray();
Console.WriteLine(string.Format("Worksheet Rows:{0}", rows.Count()));
It would appear then that the array
rows
is a two-dimensional array - you can confirm this by running the example and examining
rows
in the Watch window. Something like
rows[0,1]
would return the value of Cell A2 - probably.
However, this is a question that is best asked of the author of that project.