rhino-1.7.13.8.jar is a release file of the Minecraft mod Rhino for Forge, made for Minecraft 1.16.3, 1.16.1, 1.14.4, 1.15.2, 1.16.4, 1.16.2. It was published on November 9, 2020 and is 1 MB in size. For the full description, screenshots and every other version, visit the Rhino mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.