TXT is a plain text file format that contains unformatted text. It is widely used for storing simple data and documentation, as it can be opened by almost any text editor. TXT files are lightweight and ideal for basic text notes, configuration files, and logs.
EPUB is an open-source ebook format designed for digital books. It allows text and images to adapt to different screen sizes, making it ideal for reading on various devices, such as smartphones, tablets, and e-readers. EPUB supports rich formatting, multimedia elements, and interactivity, offering a flexible and portable ebook format that is widely supported by ebook readers and apps.