First you'll have to export the map in the map maker. Once you have done that the files of the map should appear in your exports folder. (To find the exports folder go to C:/>FeralHeart>Exports). You should find files like fhm, fho, fhs, fhw,etc... Copy all those files and then go to your desktop and right click your desktop, select "new" and then select "compressed (zipped) folder". Paste all the map's files into that zip folder. Once you do that you can then go to any file sharing site like mediafire.com (If you have an account) and upload your map there. Once uploaded you can share the link of the download with your friend ^_^. Hope that helps.