I need to delete certain rows from an .xlsx file using a C# program.
The whole table should be gone through and if a certain word appears in column B, the row should be removed.
My current solution looks like this:

 public void RemoveLines(string path)
 {
     ExcelPackage.LicenseContext = LicenseContext.Commercial;
     using (var package = new ExcelPackage(path))
     {
         ExcelWorksheet worksheet = package.Workbook.Worksheets[0];
         for (int i = 1; i < worksheet.Rows.Count(); i++)
         {
             if (worksheet.Cells[i, 2].Text.ToLower().Contains("comment") || worksheet.Cells[i, 2].Text.ToLower().Contains("network"))
             {
                 worksheet.DeleteRow(i);
                 i--;
             }
         }
         package.SaveAs(path.Replace(".xlsx", "_CLEAN.xlsx"));
    }
}

That works, but since I have a huge file with 70,000 lines, the whole thing takes about 10 minutes.

I’ve already tried saving the whole worksheet in an array, but I don’t know how to get the revised array back into a worksheet^^.
I’m currently using the EPPlus package.

Can anyone tell me how I can make the whole thing even faster, perhaps using an array or another method?

Thanks in advance

Regards