What does .XYZ stand for?

.XYZ stands for "chemical/x-pdb"

How to abbreviate "chemical/x-pdb"?

"chemical/x-pdb" can be abbreviated as .XYZ

What is the meaning of .XYZ abbreviation?

The meaning of .XYZ abbreviation is "chemical/x-pdb"

What does .XYZ mean?

.XYZ as abbreviation means "chemical/x-pdb"