using System;
using Aspose.Cells;
using Aspose.Cells.Drawing;

class Program
{
    static void Main(string[] args) // Add line in Excel using C#
    {
        new License().SetLicense("License.lic");

        // Create a workbook
        Workbook book = new Workbook();

        // Select a sheet
        Worksheet worksheet = book.Worksheets[0];

        // Draw line
        ShapeCollection shapes = worksheet.Shapes;
        shapes.AddLine(3, 5, 3, 5, 100, 500);

        // Save the output
        book.Save("sample.xlsx", SaveFormat.Xlsx);


        Console.WriteLine("Lines added successfully");
    }
}