Glossary

OGG is an open, patent-free audio container often paired with the Ogg Vorbis codec. Learn what it is, how it compares to MP3/FLAC, iPhone support, and how to convert it.

A clear guide to the BMP file format: what it’s used for, why it’s so large, when it beats JPEG, when PNG is better, and how to convert BMP to PNG.

Amazon developed the AZW3 format as its modern proprietary eBook format, optimized for Kindle devices and apps. And it’s been their standard format since 2011. Here’s a clear breakdown of what it actually is and what you can (and can’t) do with it.

Learn what a RAR file is, how RAR archives work, how to open or extract RAR files on any device, and the difference between RAR and ZIP. Includes ways to convert or unzip RAR files online.

Learn what an RTF file is, when to use it, how it compares to DOCX and PDF, and how to open, edit, or convert RTF files on any device.

The PSD file is the professional standard for layered, non-destructive editing in Photoshop. Learn what it is, how to open it, and when to convert to JPEG or PNG.

MP4 is a multimedia container that can hold video, audio, subtitles, and metadata. Learn what MP4 means, how it differs from MPEG-4, and why it’s the default for streaming, editing, and sharing.

A simple explanation of what a GIF is, what the acronym means, how it’s used in texting, and why the looping format remains part of online communication.

A PNG file is a lossless image format that preserves transparency and sharp detail. Learn what PNG is used for, when it is better than JPG or PDF, and how to convert or open a PNG.