TXT File Format
.txt is the filename extension of Text file which is created by Notepad for Windows and by TextEdit for Mac OS X. a file format for files consisting of text usually containing very little formatting. The precise definition of the .txt format is not specified, but typically matches the format accepted by the system terminal or simple text editor.
.txt extension files can easily be read or opened by any program that reads text and, for that reason, are considered universal. can also be processed by most other software programs like Apple TextEdit, Microsoft, Notepad, Microsoft Notepad, Microsoft Word, Leafpad, gedit, KWrite and other text editor. A disadvantage of text files is that they usually have a low entropy, meaning that the information occupies more storage than is strictly necessary.