Unix text file end each line with a line feed character.
DOS/Windows text files end each line with a carriage return and line feed.
Because of this, there is one additional character in a DOS/Windows file for each line in the file. Your file contains 13421 - 13292 = 129 lines.
When you transfer the file from Unix to DOS using ascii mode in ftp, this conversion takes place automatically. If you use binary mode, no conversion takes place.