Please Help, Can't open JAR files in windows 10

[xJaySvveaTx]

The title says all.

 

[getochkn]

Why are you trying to open them? Edit them? Run them? Do you even know what a JAR file is.

 

[giantbucket]

is there honey inside?

 

[jediTT]

is it a mod file for a game?

 

[azaran]

You should be able to use 7-zip or Winrar to open the package.

 

[xJaySvveaTx]

is it a mod file for a game?

yes for minecraft, optifine wont open

 

[Alabalcho]

JAR file is a package containing Java application. You could execute it with Java Runtime, but you likely don't want that.

Since Minecraft is Java application by itself, you should **somehow** put this file into your game' directory, and configure it to be executed.

 

[jediTT]

I figured it was a minecraft mod. If you dig around a bit you may be able to find some mod installers or loaders but you can manually install them by

Click the Start Icon.
Go to C:/Users/(username)/Appdata/roaming/.minecraft
Open bin and you will see minecraft.jar (It may appear only as minecraft).
Open the folder using an archive software (the most popular are 7zip and WinRAR). To do this, right-click on minecraft.jar and hover to the Open With menu.
Copy the class files into this folder. Exit the folder once you have copied the class files.
Certain mods will require you to copy files into other directories. Examples include:
- Resources folder (found in the main .minecraft directory)
- Config folder (found in main .minecraft directory)
- The .minecraft folder
Follow the instructions on your download for clarification on where to copy files to.

Also my son likes to use skydaz for a lot of minecraft mods, they package the mod into an install file that makes it easy to remove if there are crashes as well.

 

[BoyBlueSky]

From CNet Downloads:
http://download.cnet.com/JAR_Runner/3000-2094_4-76475806.html
"JAR_Runner locates the current Java installation, calls the appropriate application (JavaW.exe), & directs it to run the JAR file. It integrates right into the Windows system & also has a CMD/DOS command line option."

Download direct from JAR_Runner Site:
http://projects.killerapplets.com/JAR_Runner/