Files with qck file extension can also be found as some sort of chemical crystallography data format used in VAX CRYSTALS.
There is one other file type using
the QCK file extension!
.qck - Jigsaw 2 astrological tool data
QCK file extension - VAX CRYSTALS chemical crystallogaphy data
What is qck file? How to open qck files?
File type specification:
The qck file extension is related to CRYSTALS, a single program for performing most calculations required in single crystal structure analysis, including graphics,but with the exception of direct methods.
Simple links connect CRYSTALS to SIR and SHELXS for direct methods, and to DIRDIF for Patterson based methods.
This qck file type entry was marked as obsolete and no longer supported file format.
This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.