What is a gslides file and how do I open a gslides file?
GSLIDES is a presentation file used by Google Drive, a desktop client used for accessing Google Drive and Google Docs files. It does not store the actual presentation itself, but instead contains a URL reference to a Google Docs presentation online, and opens the presentation in Google Docs with user's default browser when double-clicked.
Relevant gslides file links:How to open gslides file on Youtube
How to open gslides file on Wikipedia
How to open gslides file on Microsoft.com