New to Cubase artist 10. Saving sampler presets

Hi I’m a newbie to Cubase. Coming from logic. I’m wanting to save some sampler track presets to use in other projects. I have saved some but the audio files are missing. What am I doing wrong?
Thanks in advance
Fred

Bump
When the sampler track looks for the audio does it not refreance the file on your hard disc rather than the project?