What is a short sequence of characters that appears at the end of a filename and is preceded by a period called

Filename Extension

Explanation:

According to my research on information technology, I can say that based on the information provided within the question the term being described by the question is called a Filename Extension. The computer uses this to know what kind of file the document is and which application to use in order to open that file. JPG, GIF, PNG are all photo file extensions.

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the correct answer is "part of speech" if the portion used is "verb, noun" there is another question similar to this with the same question but different portion. the other portion is "hand write" and the correct component for that question is "antonym".

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