FSX File Guide

View the chart below for information on common files used by FSX and how to view or edit them.

File Extension File Type Relation to FSX Program
.air Air Config File Controls how the airplane flys. AirEd
.fx Effect File Could be a smoke effect, afterburner, wing vapor, etc. notepad, or other text editor
.cfg Configuration File A configuration file for an aircraft, camera, scenery, etc. notepad, or other text editor
.xml Extensible Markup Language Typically a supporting file for a gauge, or flightplan or scenery data. notepad, or other text editor
.bgl Scenery File Scenery file for FSX. You can export to a bgl, but cannot open it up with anything. NA
.bmp Texture File Texture file for aircraft. Typically used in third party aircraft. Some .bmp textures are extended bitmaps, and require specials programs to view them. If windows explorer does not generate a thumbnail for the file, or Windows Photo Viewer cannot open it, it is mostly likely an extended bmp. Bitmap: Any Image Editor
ex. Photoshop, GIMP
Extended Bitmap: DXTBmp
.dds Texture File Texture file for aircraft. All stock aircraft use .dds textures. Image Editor: ex. IrfanView, DXTBmp, Photoshop (with plugin)