Files with sqw extension are associated with the Horace. They are known as some kind of data files.
SQW file extension - Horace data file
What is sqw file? How to open sqw files?
File type specification:
The sqw file extension is reported to be used in Horace. Horace is a new suite of programs for the visualization and analysis of large datasets from time-of-flight neutron inelastic scattering spectrometers. Some sort of data file.