Code to Delete Comment in Excel using C#. For further details: https://kb.aspose.com/cells/net/how-to-delete-comment-in-excel-using-csharp/

How to Delete Comment in Excel using C#.cs

namespace AsposeProjects
{
    class Program
    {
        static void Main(string[] args) // Main function to remove comments from an Excel file
        {
            // Load license
            Aspose.Cells.License lic = new Aspose.Cells.License();
            lic.SetLicense(@"Aspose.Total.lic");

            // Open the excel file
            Aspose.Cells.Workbook workbook = new Aspose.Cells.Workbook("InputWithComments.xlsx");

            // Access any worksheet of the workbook
            Aspose.Cells.Worksheet worksheet = workbook.Worksheets[0];

            // Remove a specific comment from a cell
            worksheet.Comments.RemoveAt("A3");

            // Remove all the comments of a worksheet at once
            // worksheet.ClearComments();

            //Save As the excel file.
            workbook.Save("output.xlsx");

            System.Console.WriteLine("Done");
        }
    }
}