你可以通过获取插件的方式添加对额外文件格式的支持.Universal Viewer 支持制作者插件.* Added: Text mode: EBCDIC, KOI8, ISO, Mac encodings are visible in the main menu, and more than 40 additional encodings are visible in the menu called by F8. Notes:
o Some encodings are greyed out, this means OS doesn't support them.
o RegEx search for custom encodings is not yet implemented.
* Added: Text mode: Commands "Encodings menu" (F8), "Next encoding", "Previous encoding".
* Added: Text mode: To the right-click menu added commands "Select line", "Encodings menu".
* Added: Text modes: Statusbar shows current text encoding.
* Added: Text/Image modes: Mouse shortcut for zoom: left button + wheel.
* Added: Option "Show icons in menu".
* Added: Option "Add the Alt key to menu shortcuts, so they won't conflict with plugins" (Plugins dialog).

官网:http://atorg.net.ru/universal_viewer/index.htm
