diff --git a/trivariatemodel/app/g22Tog2.C b/trivariatemodel/app/g22Tog2.C
new file mode 100644
index 000000000..65be65e0a
--- /dev/null
+++ b/trivariatemodel/app/g22Tog2.C
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 1998, 2000-2007, 2010, 2011, 2012, 2013 SINTEF ICT,
+ * Applied Mathematics, Norway.
+ *
+ * Contact information: E-mail: tor.dokken@sintef.no                      
+ * SINTEF ICT, Department of Applied Mathematics,                         
+ * P.O. Box 124 Blindern,                                                 
+ * 0314 Oslo, Norway.                                                     
+ *
+ * This file is part of GoTools.
+ *
+ * GoTools is distributed in the hope that it will be useful,        
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of         
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public
+ * License along with GoTools. If not, see
+ * <http://www.gnu.org/licenses/>.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public
+ * License, a covered work must retain the producer line in every data
+ * file that is created or manipulated using GoTools.
+ *
+ * Other Usage
+ * You can be released from the requirements of the license by purchasing
+ * a commercial license. Buying such a license is mandatory as soon as you
+ * develop commercial activities involving the GoTools library without
+ * disclosing the source code of your own applications.
+ *
+ * This file may be used in accordance with the terms contained in a
+ * written agreement between you and SINTEF ICT. 
+ */
+
+#include <iostream>
+#include <fstream>
+#include <string>
+
+#include "GoTools/geometry/Utils.h"
+#include "GoTools/geometry/ObjectHeader.h"
+#include "GoTools/trivariate/SplineVolume.h"
+#include "GoTools/trivariatemodel/ftVolume.h"
+#include "GoTools/trivariatemodel/VolumeModel.h"
+#include "GoTools/trivariatemodel/VolumeModelFileHandler.h"
+
+using namespace Go;
+using std::vector;
+
+// Convert a set of volumes or surface models to a g2 file. Currently handling trimmed sfs only. Not including any
+// curves that are not used by the trimmed sfs. Volumes not yet supported.
+
+int main( int argc, char* argv[] )
+{
+  if (argc != 3) {
+    std::cout << "Input parameters : Input file(.g22), output file(.g2)" << std::endl;
+    exit(-1);
+  }
+
+  std::string file1_name(argv[1]);
+  std::ifstream file1(file1_name);
+  ALWAYS_ERROR_IF(file1.bad(), "Input file not found or file corrupt");
+
+  std::ofstream out_file(argv[2]);
+
+  VolumeModelFileHandler filehandler;
+  std::vector<shared_ptr<ftVolume> > volumes = filehandler.readVolumes(file1_name.c_str());
+  if (volumes.size() > 0) {
+      std::cout << "Not yet supporting volumes: volumes.size(): " << volumes.size() << std::endl;
+  }
+
+  std::vector<shared_ptr<SurfaceModel> > sf_mods = filehandler.readSurfModels(file1_name.c_str());
+  std::cout << "sf_mods.size(): " << sf_mods.size() << std::endl;
+  for (auto surf_model : sf_mods)
+  {
+      std::vector<shared_ptr<ftSurface> > faces = surf_model->allFaces();
+      std::cout << "Number of sfs: " << faces.size() << std::endl;
+      for (auto face : faces)
+      {
+          shared_ptr<ParamSurface> sf = face->surface();
+          sf->writeStandardHeader(out_file);
+          sf->write(out_file);
+      }
+  }
+
+}