.HBK

.HBK file extension

This is the basic program to work with .HBK extension

Mathcad

MathcadMathcad Electronic Book

Matchcad 14.0 is a software program that offers mathematical solutions to challenges encountered by engineers, companies, and developers, enabling them to capture the developmental progress of products from the design stage, then step-by-step, all the way to final manufacturing and Technical Publishing ready for Purchasing... (more)

The program works with the following extensions: mcd, hbk, mct, xmct, xmcd and xmcdz

.HBK extension is also supported by the following programs:

Mathcad Professional

Mathcad ProfessionalMathcad Electronic Book

Auto Backup

Auto BackupAuto Backup Archive

Auto Backup Software is an easy-to-use program designed to automatically backup.
Applied Statistics

Applied StatisticsMathcad Electronic Book