Step 1: Click on the map you want, if you want a specific map, there is a search bar for that.

Step 2: Find the Minecraft World Save button and click on it.

Step 3: If it opens a mediafire or dropbox link, then click on the download button. On dropbox, when you click on the download button, it might ask you to sign in. If it does, there is an option to skip signing in. If the Minecraft World Save redirects to an (Ad link removed) link, wait 5 seconds and click on the skip ad button.

Step 4: Wait for the .zip or .rar file to download. Then open the file.
These can be opened with tools like WinRar.

Step 5: Extract the world folder ( the folder with level.dat ) in the file to your drive\Users\your user\AppData\Roaming\.minecraft\saves

Step 6: Open the minecraft launcher and play. If the map should be played on a specific version, then play on that version.

Step 7: Click on singleplayer once the game loads and find the map you downloaded.

and extract mods folder to .minecraft
to view the