That will save you some time! You can convert Silhouette files for use in the Glowforge by using this converter to turn them into SVG files
Before you get too excited though, there will likely be some tweaking that needs to be made to the files to make them laser-ready. There is a tutorial here that should fill you in on the basics:
And then you will need to run through the tutorials for learning to use the Glowforge that I linked above.