Operating systems such as microsoft windows use a specific character before a file extension to separate it from the filename. which character separates the file extension and the filename? the character separates the file extension and the filename.

The character is a period ( . )

period ( . )

Explanation:

The length of a file indicates its format, telling the operating system what type of file it is, so that it and applications know what it is, what program it can be opened and / or what program it was generated.

Extensions are preceded by a period and usually consist of three letters. A file named "text.doc" was possibly created in word and can be opened by it. An "image.gif" file is a gif image that may have been created by one of the thousands of image editors.

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