How can I determine if a file is binary or text in c#? [duplicate]

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There’s a method called Markov Chains. Scan a few model files of both kinds and for each byte value from 0 to 255 gather stats (basically probability) of a subsequent value. This will give you a 64Kb (256×256) profile you can compare your runtime files against (within a % threshold).

Supposedly, this is how browsers’ Auto-Detect Encoding feature works.

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