Is it possible to save gradient to Swatches Exchange File (.ase) or Swatches File (.ai)?

i have created amazing gradient and save it on swatches panel.

this gradient can not accessed by new document file, so i have to save the swatches to .ase or .ai, then open this 'user defined' swatches on new document to get access of swatches.

BUT, unfortunately, there is no gradient on loaded swatches. Why? Gradient can not be saved?

thanks