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Looks good but a couple of small things occurred to me: * In output() you've got a branch for for if ($filename === false). Rather than calling echo, you could set filename = 'php://output' and use the same fopen()/fwrite()/fclose() code. * It's not critical but I'd like to see more comments in output() and createFromFile() on the file format. * It appears that you've corrected just about everything Justin Patrin mentioned other than a couple of the "BM"s (rather than 'BM'). |