but every time i try to open it it doesnt open and also it says its a exacutable jar file and im also trying to install some mods
i havetried that but i just chose with program to open it since javas being a bitch oh and also mod works YAY!
To open a jar file with winrar, right click and click open with. Search for Winrar in that list you're given. Also, to easily install mods, get Minecrafter. If you install mods manually (which is also permanently), it usually blocks you from survival multiplayer. But with minecrafter, all the mods are temporarily installed, AND AUTOMATICALLY (kind of like the YSmenu autocompiler). By temporary, I mean once you close Minecraft and Minecrafter the mods are no longer installed. You'll need to use minecrafter every time you want to use the worlds the mods are associated with, but other than that it's really efficient and easy. Minecrafter
I downloaded the .jar when no other version would open anymore on my computer for some reason and it opened like any other executable for me.