After exporting it the files will appear in your exports folder. The files include:
- .fhm the map file
- .fho the object groups
- .fhs the custom sky file, if you used one.
- .fhw the custom weather cycle, if you used one.
You need to gather all these files and put them in a new folder, turn the folder into a .zip file so it's easier to download/upload.
When the folder is compressed you have to upload it to a file sharing site such as
www.mediafire.com or
www.zippyshare.com.
When you're done, give the download link to your friends. After downloading they need to open the folder and place all the files into their exports folder. The portal to your map should appear in Cape of Distant Worlds.