Learn how to install custom maps/worlds in Minecraft 1.12.2 and below!
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NOTE: You only need one of these programs installed, either Winrar or 7zip; both can extract/archive files. They need to be used when trying to extract .rar map folders. You can still use them to extract .zip map folders as well.
NOTE: To open .minecraft folder in new launcher do this: On keyboard press windows key + r, on run box type %appdata% hit enter, open .minecraft folder then saves folder.
Here are some sites you can download maps from:
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