BVSTools has just updated the GreenTools for Google Apps (G4G) Google Drive addon to allow you to convert the file you upload to the Google Doc format, if available.
The new version contains the CONVERT(*YES|*NO) command parameter on the G4GUPLOAD command as well as providing the settable field of convert_file for use with the ILE subprocedures.
This new version is available in G4G v10.20 SP160910 or higher.
Feel free to contact us with any questions. Thanks!