The standard ebook format. Supports flowable text content with images and formatting.

A widely used markup language for encoding documents in a way both humans and computers can read.

Similar to JSON but strives to be even more human-friendly. Great for configuration files.

A lightweight markup language for formatting plain text. Used all over the web, including in this article!

Scalable Vector Graphics. An XML-based image format that can scale to any size without pixelation.

A structured collection of data, often with multiple tables. Access, MySQL, and Oracle are big players.

For tabular data like spreadsheets. Very simple and universally supported.

Lightweight data interchange format that’s easy for humans to read and write.

Any file that’s been made smaller with compression. ZIP and RAR for general files, MP3 for audio, JPG for images, etc.

Data organized into a grid of cells. Microsoft Excel’s XLSX is a de facto standard.