infile = open("Edited Subtitles.txt", "r") outfile = open("Zeroed.srt", "w") i = 1 for line in infile: outfile.write(str(i) + "\n") outfile.write("00:00:00,000 --> 00:00:00,000\n") outfile.write(line) outfile.write("\n") i += 1 infile.close() outfile.close()