woff
What is a .woff file?
font/woff
WOFF (Web Open Font Format) wraps TrueType or OpenType font data with compression and metadata specifically for efficient delivery over the web. It reduces download size and is recognized by all modern browsers via CSS @font-face. It is essentially a web-optimized container around an existing font.
How to use a .woff file
Use an example WOFF to test web-font loading, decompression back to the underlying font, and @font-face rendering across browsers.