as the title Say...
i want to compile some Textures into U File.

Can be done with .ucc using #exec commands
https://www.oldunreal.com/wiki/index.php?title=Exec_Commands

otherwise, you can use L2Editor

simply go to the Texture Browser > File > Import > import your image, then File > Save > save as .utx somewhere, then rename the file from .utx to .u (also, there's no need to encrypt .u files)

Documentation for the texture browser:
https://docs.unrealengine.com/udk/Two/TextureBrowserReference.html

Edited July 15, 20233 yr by 911reg

9 minutes ago, 911reg said:

Can be done with .ucc using #exec commands
https://www.oldunreal.com/wiki/index.php?title=Exec_Commands

otherwise, you can use L2Editor

simply go to the Texture Browser > File > Import > import your image, then File > Save > save as .utx somewhere, then rename the file from .utx to .u (also, there's no need to encrypt .u files)

Documentation for the texture browser:
https://docs.unrealengine.com/udk/Two/TextureBrowserReference.html

you can Closed the topic. Thank you very much for your help 

Locked, solved