This C# example showcases how to get List of Hidden Sheets a MS Excel Spreadsheet in C# using FileFormat.Cells SDK

get-hidden-sheets.cs

using FileFormat.Cells

string filePath = "Z:\\Downloads\\hidden_sheets.xlsx";

using (Workbook wb = new Workbook(filePath))
{
    List<Tuple<string, string>> hiddenSheets = wb.GetHiddenSheets();

    foreach (var sheet in hiddenSheets)
    {
        Console.WriteLine($"Hidden Sheet ID: {sheet.Item1}, Name: {sheet.Item2}");
    }
}