For technical reasons, you need to know the seed of your world to use Seed Map, unless, of course, you want to find a seed for a new world. If you're playing SSP, the app is able to fetch the seed from your savegame. Alternatively, you can use the /seed command ingame. In SMP, you can use the same command if you have sufficient rights. Otherwise, however, you're dependent on the server owner, who started the world and has access to the savegame and config files.
Minecraft Save Seed Reader Download
The first thing you should do is select a seed and version. You can either type it in manually, or you can load it from your savegame. The latter can be done by clicking on "Load from Save..." and selecting your level.dat, or by drag&dropping the level.dat file into your browser window. Level.dat is a small file located in the folder of every Minecraft savegame. You can find the savegames in the saves folder of your Minecraft installation. On Windows you can use %appdata%\.minecraft\saves to get to that folder.
Minecraft Save Seed Reader is a Java program that reads the seed value from all your saved files, so you can regenerate your worlds any time you'd like. Being a Java program, it works on all platforms that Minecraft itself does, and it should automatically find your saves no matter what platform you're using.
The Minecraft unable to save download error could occur because of a permission issue. For the most part, Minecraft does not run with administrator access. This causes multiple problems from time to time, apart from the unable to save download error.
Last but not least, you can always try reinstalling the game. If none of the fixes above worked, then this is your last resort to fix the problem. The final fix for the Minecraft unable to save download error is to try reinstalling the game. 2ff7e9595c