The .tbn file extension is an image file used by the XBMC media player. This media player works with Mac, Windows and Linux.
TBN files are effectively JPGs and can be opened by any standard image editor.
.tbn File
Extension
Developer:
XBMC
File category:
What are tbn files & how to open them - XBMC Folder Thumbnail File
File category:
Developer:
XBMC