Conversion of otg files to jpg file format

It is certainly possible to export any images out of .otg files with  one of the open source office suites based on the Open Document schema, such as OpenOffice.org or LibreOffice. The Draw program that is part of these suits uses .otg files for templates, so it's your best option for any otg to jpg conversion attempts. If any images are present in these templates you should be able to save them in one of the typical image formats like JPEG.

Open OTG file    Open JPG file

Related software

Apache OpenOffice Draw icon

Apache OpenOffice Draw

Graphic editor for diagrams and simple graphics from OpenOffice.org suite

LibreOffice Draw icon

LibreOffice Draw

Graphic and diagram software from LibreOffice suite