lisp routines (again)

There is a list of file extensions near the beginning of the reference
manual for Carlson Survey (pgs 17 and 18 to be exact). The file extension
".lsp" is named as a "Carlson Survey CES File Type. I'm thinking there must
be a way to utilized this type of file. Many thanks.
manual for Carlson Survey (pgs 17 and 18 to be exact). The file extension
".lsp" is named as a "Carlson Survey CES File Type. I'm thinking there must
be a way to utilized this type of file. Many thanks.