.Hm is not opening up in hypermesh

I created a model and was able to perform an analysis on it. 

I am able to open up the .h3d file from the analysis, but when I go back to open up the original .hm file I receive an error

'the file secified is not a hypermesh database' 

I am new to hypermesh so any help would be appreciated

<?xml version="1.0" encoding="UTF-8"?>