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.txt is in that list you quoted... Edit: the dyslexia kicked in txt!= tex I'm the fool.

!= .tex, which is for LaTeX or similar, and isn't just a plaintext .txt file.

Except that it is just plaintext...

any file can be plain text if you want it to be ;)

and you can make plain text files that are executable in x86 land:

That was AWESOME. Thanks for sharing.

A PDF file is also mostly plaintext. At times.