Has anyone worked with .sxd file types?

Hello, i would like to ask how would i implement these .sxd file types into a solution like Android. For my situation, these files have been taken from another project while is still a mobile app but not for either android or apple, at the moment i am having issues with fixing the errors, such like:

If you have any solutions please post away as i have no idea what i am doing and i need these files to be implemented in my project.