hot to open file on solidworks
Step 1. Start Solidworks
Step 2. Click 'File>open'
Step 3. navigate to the Solidworks or 3d import (step, iges, etc) file you wish to open
Step 4. Select the file and it should open, (or import.)
Alternatively, you can use the 'open' icon to perform step 2 with a single mouse click.
You may also 'double click' a Solidworks file in File Explorer and it should open in Solidworks as well.
Keep in mind in order to open a Solidworks 'assembly' file, you will also need the Solidworks 'part' files that make up that assembly.