Shw extension is related to Corel Presentation file. You can try to open shw files with Corel Presentations.

These are the presentation files which created by Corel Presentations software. Shw files include texts, images and audios slides such as PowerPoint. 
You can make ppt in Corel Presentation software with the Export option. Besides,with this way, it can be opened by PowerPoint software. Also, you have another option to open those files on different computers. In this case you should change the file to .exe. 
The official web page of the corel software:

What to use shw

Corel Presentations

which page related to shw file

shw Related Searches

You can check related links about shw fileextension.