Directory

//// Create directory on specific folder                        
    string folderPath = "C:\\Excel\\";
    if (!Directory.Exists(folderPath))
    {
        Directory.CreateDirectory(folderPath);
    }
    
     //// Get path of user "Documents" Folder   
    string user = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
    
    //// Concate folder with existing directory    
    string folderPath = Path.Combine(user, "Excel\\");
    if (!Directory.Exists(folderPath))
    {
        Directory.CreateDirectory(folderPath);
    }
    
    //// Get directory of project using specific file name   
  string fileName = "Shipment Date wise CST Summary.xlsx";
  var directory = Path.GetFullPath(fileName);