Document type can be a tag chosen to some file used to identify what that file starts. For Example, .txt file, image file etc could be opened using a plan including Microsoft Word. In Microsoft Windows, the file name extension is a period that is often followed by three characters, but may also be one, two, or four characters long.
For example, the file name “myfile.txt” has an extension of “.txt”, which is a file name extension associated with text files.
File extension shows the file type categorized by their contents.
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This character name is alluding to Philo Farnsworth and Vladimir K. Zworykin, who invented the iconoscope. He was inducted into the Television Academy Hall of Fame in 2013