XNA 4.0 Content Compiler Compile to .xnb your texture files, audio files and SpriteFont files without adding to the Content project. Very Usefull in tools to create content for a game.

Compile (All supported by XNA): Image Files: *.bmp, *.jpg, *.png, *.tga, *.dds; Audio Files: *.wav, *.mp3, *.wma; SpriteFont Files: *.spritefont;

With the source Code, just add more file types(Like .X or .fbx) and compile it !!

the above texts is from the original XNA 4.0 Content Compiler on CodePlex.

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My Improvements:

• Build content files one by one.
• Compress Content option.