If so, can you point me with latest version that had this format? 
Okey, I found em in plugins. Seems works same as it was before 
Since Tiled 0.15 some rather specific plugins, like the export format for the Flare engine, are disabled by default. This was mainly since the “txt”, “dat” and “lua” extensions used by these plugins were suggesting they were more generic, while really they are meant to be used with specific engines and are not storing all information.
These engines should update their documentation to mention the need to enable the respective plugin in the preferences.