Do u know how to open .ktx file

There may be a third-party image converter that may be able to change

the file, however there are a few and I'm not sure which one may do that.

https://duckduckgo.com/?q=OS+X+.ktx+file+converters&t=ffsb

https://duckduckgo.com/?q=.ktx+file+converters&t=ffsb

Some applications may be able to cross-platform open or change them.

If the item could be handled in Microsoft Word or Google Apps there may

be a way to utilize content (converted elsewhere) in a Mac OS X.

Perhaps someone with exact experience will reply...

Good luck! 🙂

No idea if this runs in El Capitan…

http://twilightedge.com/mac/pikopixel/

there is also this…

https://community.imgtec.com/downloads/mac-osx-installer:-powervr-tools-&-sdk-4. 0

FWIW, I suspect the first link I posted is not what you are looking for.

hanstaa wrote:

what happen with 1st link?

The first link points to a pixel based graphics editor.

KTX is a format for storing textures for OpenGL and OpenGL ES applications. The second link points to a package that can work with .ktx files.