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What is the main function of a file extension?
O to allow the file to be extended to new uses
O to indicate which version of the file it is
O to indicate how much space the file takes up
O to indicate which program is needed to open it

Respuesta :

Ashutosh988

Answer:

Main function of a file extension is to indicate which program is needed to open it.

Explanation:

A file extension is added to a file name in last, by writing a dot and then name of an extension suitable for it. For example,  an extension used in any text file is .txt. You cannot use .txt extension for any photo.

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