Nanook.QueenBee.EditorForm.backup C# (CSharp) Method

        private void backup(string filename)
        {
            //let exceptions be raised
            string bakFilename = string.Format("{0}.bak", filename);

            if (File.Exists(filename))
            {
                if (File.Exists(bakFilename))
                    File.Delete(bakFilename);
                File.Copy(filename, bakFilename);
            }
        }