The function bsave-instances works exactly like save-instances except that the instances are saved in a binary format which can only be loaded with the function bload-instances. The advantage to this format is that loading binary instances can be much faster than loading text instances for large numbers of instances. The disadvantage is that the file is not usually portable to other platforms.
Syntax
(bsave-instances <file-name>
[local | visible [[inherit] <class>+])