Question

how many letters are there in a file extension​

Answer 1

Answer:

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THE ANSWER IS

While most file extensions are three characters in length, they can be as short as one character or longer than twenty characters. Sometimes long file extensions are used to more clearly identify the file type.

Explanation:

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Answer 2

Answer:

While most file extensions are three characters in length, they can be as short as one character or longer than twenty characters. Sometimes long file extensions are used to more clearly identify the file type