I came from the general meta site with this question in mind:

I know I can build a .rar file with regular method or programs, and append it to an image by using a command such as cat img.jpg myfile.rar > img.jpg and when opening the image, the image will be displayed as before. But I can also open the image with WinRAR or a software alike (like unrar e img.jpg). How is possible that the rar file is recognized inside the jpg image, instead of rejected as not being an appropriate file format?

Is that question suitable here?

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  • Looks good to me – Burgi May 26 '16 at 19:54

Yes, it's about file formats that are related to general computing. You've explained the setup well and it's clear what you're asking. Therefore, you can ask it here.

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  • An error message appeared to me telling I can post once every 40 minutes! What can I do? I am trying to post in the main site and the only question I did was this (meta) question. – Luis Masuelli May 26 '16 at 20:07
  • I imagine that message means you can only post one question every 40 minutes. Wait a while, then you'll be able to ask it. – Ben N May 26 '16 at 20:08
  • Will have to wait then. Pretty weird, never happened to me in other SE sites. – Luis Masuelli May 26 '16 at 20:13
  • If you can only post 1 question ever 40 minutes it means some of your past questions have not been well received. Be sure this question is extremely high quality from a clarity, grammatical, and research perspective. – Ramhound May 27 '16 at 11:39

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