TXT is a file format that contains the text, organized in rows. Text files opposed binaries that contain data that is not intended for interpretation as a text (encoded sound or image). The text file can contain both formatted and unformatted text. Since the very simple text files, they are frequently used for storing data.
This is a bitmap image format used in the VisiQuest Khoros visualization software suite. VIFF can be used to store bitmaps that are made up of color zones. It can store up to 2–3 color maps, and it is used to analyze visual data in research software.