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 color system for displaying image and video files. The luminance component (Y) in UYVY is digitized at each point, whereas the color difference components (U, V) are digitized two times less frequently. It has a 16 bits/pixel structure, and it is used in video rendering and image editors.