: Right-click the file, hover over Open with , and select WinRAR .
If your goal is to "generate" a new look for the paper item (often used for custom menus or UI in PvP packs like Glorious Rose Gold), you can: Open ZIP Files With WinRAR: Extract ZIP file (open zip with WinRAR) Glorious - Rose Gold 16x
As this is a resolution pack, the image will be a small 16x16 pixel grid. 3. Generate or Modify the Paper Texture : Right-click the file, hover over Open with