http://www.mediafire.com/file/r0ij0rtt763iufy/Terraria_1.3_All_Items_Map_%28REZO_DRIZZLE%29_3.wld/file
Step 1: download file (obviously)
Step 2: Share file to Filza
Step 3: copy the document in Filza by clicking the edit button at top right and select the file
Step 4: open a new tab from the bottom right
Step 5: activate Filza by clicking the activate button and hit done
Step 6: open a game tab (very bottom left)
Step 7: find terraria and open DOCUMENTS folder
Step 8: now scroll until you find worlds and click on it
Step 9: paste by clicking bottom left button, wait
Step 10: close Filza and terraria (if you had it open)
Step 11: reopen terraria and you should have the world!! 🙂