cleaning incoming: hpxl300, cherrey.ascii, shar.g.mapsets

Hi, we are trying to clean up the incoming directory on the ftp site.
There are 3 things there that I don't know anything about (i.e. who
put them there and who needs them and what are they)
If someone knows something about

HPXL300, cherry.ascii.Z or shar.g.mapsets, please write to me.

Thank You,
Olga