Generally faced a problem, needed textures from assets, and they are in tex format, looked for a bunch of converters and only one converts from tex format to dds. And this Fable 3_TEXT_convert Converter, link Converter http://www.mediafire.com/file/nxhyhwjtssdlpbk/Fable3_TEX_convert.zip
General texture tex format to throw in a folder Fable3_TEX_convert, then run the batch file Fable3_TEX_convert, and then select the figure which indicate the resolution of a texture, then texture is simple if it is DXT1, if transparent, i.e. with an alpha channel, select DXT5. There's also DXT3, but it's more of a plant, I'm not sure.
And then select the number you want to save to save to the folder of the Converter 1.
I hope someone will be useful this guide