How to specify datasource in data-driven unit test? C#

I have written a data-driven unit test and now I need to specify the data source for the unit test. The unit test is written in C# with MS Visual Studio. My data source is an excel file with a sheet named "TestData". My code for data source is as follows:

[DataSource(
        "System.Data.Odbc",
        "Dsn=Excel Files;dbq=.\data.xlsx;defaultdir=.; driverid=790;maxbuffersize=2048;pagetimeout=5",
        "TestData$",
        "Sequential"
    )]

What's wrong and how to fix it?