Ok, I really finds structure of fields data for viewing
And we can name field files.
Program for viewing fields:
http://zidane_games.webhost.ru/tilemaps_0.5.rarWith viewer in arch i put FF9_img_extract tool, for splitting FF9 img file.
For view fields:
Start program and select any file in folder "4" (extracted from FF9)
arrow keys for change position of field image
space - screenshot
enter - select other file
1,2,3...0 - change tile set, if presented more than 1