The file appears to be a Java Archive (JAR) file, which is commonly used for Minecraft mods. The "1.20.1" in the file name suggests it's compatible with Minecraft version 1.20.1.
Minecraft, mod, JAR file, Re Terra Forged Mod Forge file name reterraforgedmodforge1201jar
I came across a file named "Retterraforgedmodforge1201jar" and I'm assuming it's related to a mod for Minecraft. Has anyone else seen this file before? The file appears to be a Java Archive
Share your knowledge in the comments below! file name reterraforgedmodforge1201jar