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Then hit ↵ Enter.{"smallUrl":"https:\/\/www.wikihow.com\/images\/f\/f4\/Send-a-Secret-Message-Through-a-Picture-Step-8.jpg","bigUrl":"\/images\/thumb\/f\/f4\/Send-a-Secret-Message-Through-a-Picture-Step-8.jpg\/v4-400px-Send-a-Secret-Message-Through-a-Picture-Step-8.jpg","smallWidth":460,"smallHeight":345,"bigWidth":"400","bigHeight":"300","licensing":"<div class=\"mw-parser-output\"><p>License: <a rel=\"nofollow\" class=\"external text\" href=\"https:\/\/creativecommons.org\/licenses\/by-nc-sa\/3.0\/\">Creative Commons<\/a><br>\n<\/p><p><br \/>\n<\/p><\/div>"} You'll find a new .bmp file named secret.bmp, which is your final image file, which contains your secret message.{"smallUrl":"https:\/\/www.wikihow.com\/images\/2\/28\/Send-a-Secret-Message-Through-a-Picture-Step-10.jpg","bigUrl":"\/images\/thumb\/2\/28\/Send-a-Secret-Message-Through-a-Picture-Step-10.jpg\/v4-400px-Send-a-Secret-Message-Through-a-Picture-Step-10.jpg","smallWidth":460,"smallHeight":345,"bigWidth":"400","bigHeight":"300","licensing":"<div class=\"mw-parser-output\"><p>License: <a rel=\"nofollow\" class=\"external text\" href=\"https:\/\/creativecommons.org\/licenses\/by-nc-sa\/3.0\/\">Creative Commons<\/a><br>\n<\/p><p><br \/>\n<\/p><\/div>"}

Summary:
Open Command Prompt by clicking on Start > Run and typing cmd. Check back at your folder.