Add Default Style to a Workbook in C#

add-default-style-to-workbook.cs

// Import necessary namespace
using FileFormat.Cells;

class Program
{
    static void Main(string[] args)
    {
        // Define the path to the existing spreadsheet
        string filePath = "Z:\\Downloads\\test_spreadsheet1.xlsx";

        // Open the existing workbook specified by the filePath
        using (Workbook wb = new Workbook())
        {
            // Update the default style for the workbook:
            // Set font to Arial, font size to 12, and font color to the hex code "A02000" (a shade of red)
            wb.UpdateDefaultStyle("Arial", 12, "A02000");

            // Get the first worksheet from the workbook
            Worksheet firstSheet = wb.Worksheets[0];

            // Add values to the cells A1 to A3 with the new default style
            firstSheet.Cells["A1"].PutValue("Hello, World!");
            firstSheet.Cells["A2"].PutValue("Default Style Applied!");
            firstSheet.Cells["A3"].PutValue("Check Font & Color.");

            // Save the changes made to the new workbook.
            wb.Save(filePath);
        }
    }
}