With Filestar you get 219 different skills for working productively with Multiple Network Graphic (.mng) files.
About .Mng
Name
Multiple Network Graphic
Extension
.mng
Format
Binary
Category
Raster Image
Developer
MNG was developed by Tom Boutell.
Description
An extension of the .PNG image format that uses indexed colors and supports image animations; similar to an animated .GIF file, but uses higher compression and features full alpha support (multi-level transparency).