With this method, we will do most of the editing on the regular file browser, and only use our zipping program to create a .z2f file at the end. Once you're done, select all your topmost level folders (ai, entities, units, lang, etc.) and right click, and use your zipping program to add them to a new archive. Make sure the file format is .zip (not .rar or anything else), and on the new file name, write .z2f at the end before clicking OK.
The other common files for Zoo Tycoon are .DL files. This file extension is used specifically for the ZT games. Usually these files are found when unpacking a .zip or .rar file. They should appear inside of their own folder, which includes the .DL file and another sub-folder.
That's right, only a few days ago, someone uncovered the beta version of ZT and has posted it for download at Zoo Tycoon Hideout. It contains extra foliage, terrain, and more, and I think you should all check it out. You have to register to access it. It's a 124 MB download, and it is in .rar format, simply decompress and you can play it. I'm eager to see what it has. It may thouroughly enhance our understanding of ZT as we know it, so I highly recommend you check it out. 041b061a72