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Read and parse a CSV file into an array of rows and columns in C#

The following PopulateCsvIntoArray method used to read the CSV file into a two-dimensional array of strings.

I have included explanation of method lines, wherever needed.
/// <summary>
/// Populate the CSV file into an array,
/// We assume that every line has the same number of fields and there may be blank lines.
/// </summary>
/// <returns></returns>
private string[,] PopulateCsvIntoArray()
{
    // Get path of CSV file.
    var path = Server.MapPath("~/Folder_Name/testfile.csv");
    // Get the file's text using ReadAllText method.
    string fileData = System.IO.File.ReadAllText(path);

    // Split CSV data into lines.
    fileData = fileData.Replace('\n', '\r');
    string[] lines = fileData.Split(new char[] { '\r' },
        StringSplitOptions.RemoveEmptyEntries);

    // Get rows and columns counts.
    int totalRows = lines.Length;
    int totalCols = lines[0].Split(',').Length;

    // Allocate the data array.
    string[,] resultVals = new string[totalRows, totalCols];

    // Populate the array by looping through rows and columns.
    for (int row = 0; row < totalRows; row++)
    {
        string[] line_r = lines[row].Split(',');
        for (int col = 0; col < totalCols; col++)
        {
            resultVals[row, col] = line_r[col];
        }
    }

    // Return the output result.
    return resultVals;
}
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