Level Editor
 
My first serious project on PC written in 2000. So I just migrate from speccy, I not think about cross platform compatibility, so I store levels in bad (my grown) file format: it directly dumps C-structure object to disk with write() call so it no check byte order and depends on compiller-specific structure alligment in memory. 

Platform: Windows 

Now I find good file format (standard and portable) for store tile map and objects on it with initial possitions and other properties which fit for games like Dizzy, LodeRunner and other 2D actions. If you know such format please let me know. 

Downloads
leveditor.zip (420 Kb) - Windows executable and help file
levedit-src.zip (32 Kb) - Source for C++ builder

Links
http://sashnov.nm.ru/levedit.html