Why won't 3D points show up when I open a step file?

http://www.engineering.com/tutorials/importing-a-step-file-solidworks/

If you don't click the link, copy paste below:

The best way to import a STEP file is through the “File” drop-down menu. Select “Open” and change the file type to look for STEP files.

Before we click “Open,” click the “Options” button to go over some of the options. The “Import Options” dialog box appears.

The defaults are usually safe to use, but it sometimes pays to take a quick look before importing a STEP file to make sure you get the results you’re looking for.

...

We can also choose to import point or curved entities to import the data as 2D and 3D sketch data, by selecting “Free point/curve entities.” This option is useful if you’re importing free points or free curves from either a CAD or analysis package. With this box checked, you can either have SOLIDWORKS import the data as sketches or as curve features. The user must decide which option will be best depending on how the data will be used.

How do you know the step file is legit?

Have you tried importing with the "import as 3D curves" button checked for grins?