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If you on IOS here is the steps. Step 0: Download Files and Documents. Step 1: Download the Pack. Step 2: Click go to documents or more. Step 3: Un Zip it and click the 3 dots on it. Step 4: Bring it to files. Step 5: Put it in the Custom Solar System Folder. (Need the planet expansion) Step 6: Go to SFS Step 7: Look for the Solar System Pack Step 8: When you find it Enjoy!