diff --git a/BasePlugin/FileInterface.hh b/BasePlugin/FileInterface.hh
index da63a9de646c436791d3c702853d6e5371dfba69..fa4d54379b61d4b698ee4b0ebb4afc88bf34a1f0 100644
--- a/BasePlugin/FileInterface.hh
+++ b/BasePlugin/FileInterface.hh
@@ -154,6 +154,22 @@ public slots:
        */
       virtual int loadObject(QString /*_filename*/) = 0;
 
+      /** \brief Load an object from the given file
+       *
+       * The Core will call this slot if you should load a file. The core will
+       * check if you support the given file type depending on the provided
+       * filters and dataTypes ( see supportedType and getLoadFilters )\n
+       *
+       * if you just opened a file and did not create any object, return 0 here,
+       * telling the core that it was successfully loaded but no new object 
+       * has been created!
+       *
+       * If the Plugin is able to open the file in different DataTypes
+       * one of these DataTypes can be forced here
+       *
+       */
+      virtual int loadObject(QString /*_filename*/, DataType /*_type*/){ return -1;};
+      
       /** \brief Save an object from the given file
        *
        * The Core will call this slot if you should save an object to a file.
diff --git a/Core/Core.cc b/Core/Core.cc
index 003bc4639bff44c0cae8caf10835242f295940d0..23e02351ecfe3cd7dd54d8aafd6a9d7359747a67 100644
--- a/Core/Core.cc
+++ b/Core/Core.cc
@@ -892,14 +892,10 @@ Core::slotRecentOpen(QAction* _action)
   QVector< OpenFlipper::Options::RecentFile > recentFiles = OpenFlipper::Options::recentFiles();
   for (int i = 0 ; i < recentFiles.size() ; ++i )
     if ( recentFiles[i].filename == _action->text() ){
-      if (recentFiles[i].type == DATA_UNKNOWN)
-        loadSettings( recentFiles[i].filename );
-      else{
         OpenFlipper::Options::loadingRecentFile(true);
         loadObject(recentFiles[i].type, recentFiles[i].filename);
         OpenFlipper::Options::loadingRecentFile(false);
-      }
-      break;
+        return;
     }
 }
 
diff --git a/Core/Core.hh b/Core/Core.hh
index d411d31b9726fc660c4ef0c34534ea1cb05dcb94..55b36807d852b204ce526674162e1548f3ea9d68 100644
--- a/Core/Core.hh
+++ b/Core/Core.hh
@@ -114,6 +114,7 @@ struct fileTypes {
   QString loadFilters;
   QString saveFilters;
   FileInterface* plugin;
+  QObject* object;
 };
 
 struct dataTypes {
diff --git a/Core/PluginLoader.cc b/Core/PluginLoader.cc
index f42e55d940620dd5174f2b4fa545f5d4d6c94011..6694862edb7da54db41dabf60ba52a57ac7bac39 100644
--- a/Core/PluginLoader.cc
+++ b/Core/PluginLoader.cc
@@ -1144,6 +1144,7 @@ void Core::loadPlugin(QString filename, bool silent){
       ft.loadFilters = filePlugin->getLoadFilters();
       ft.saveFilters = filePlugin->getSaveFilters();
       ft.plugin = filePlugin;
+      ft.object = plugin;
       
       supportedTypes_.push_back(ft);
     }
diff --git a/Core/openFunctions.cc b/Core/openFunctions.cc
index 15c14c6263b6729d3de2480474755fd0f624ada8..df3a108d5b24552600cbc3b67389698249216d38 100644
--- a/Core/openFunctions.cc
+++ b/Core/openFunctions.cc
@@ -199,8 +199,41 @@ int Core::loadObject ( QString _filename ) {
   if (_filename.endsWith(".ofs")) {
      emit log(LOGINFO ,tr("Starting script execution of %1.").arg( _filename)) ;
      emit executeFileScript(_filename);
-  } else
-    return loadObject( DATA_TRIANGLE_MESH, _filename);
+  } else {
+    
+    QFileInfo fi(_filename);
+    
+    for (int i=0; i < (int)supportedTypes_.size(); i++){
+
+      QString filters = supportedTypes_[i].plugin->getLoadFilters();
+      //check extension
+      if ( ! filters.contains( "*." + fi.completeSuffix() ) )
+        continue;
+
+      if ( OpenFlipper::Options::gui() ) {
+        coreWidget_->statusMessage( tr("Loading %1 ... ").arg(_filename));
+        if ( !OpenFlipper::Options::loadingSettings() )
+          coreWidget_->setStatus(ApplicationStatus::PROCESSING );
+      }
+
+      //load file
+      int id = supportedTypes_[i].plugin->loadObject(_filename);
+
+      if ( OpenFlipper::Options::gui() ) {
+        if ( id != -1 )
+          coreWidget_->statusMessage( tr("Loading %1 ... done").arg(_filename), 4000 );
+        else
+          coreWidget_->statusMessage( tr("Loading %1 ... failed!").arg(_filename), 4000 );
+
+        if ( !OpenFlipper::Options::loadingSettings() )
+          coreWidget_->setStatus(ApplicationStatus::READY );
+      }
+
+      return id;
+    }
+  }
+
+  emit log(LOGERR, tr("Unable to load object (type unknown). No suitable plugin found!") );
 
   return -1;
 }
@@ -214,18 +247,30 @@ int Core::loadObject( DataType _type, QString _filename) {
   if (_type == DATA_UNKNOWN)
     return loadObject(_filename);
 
+  QFileInfo fi(_filename);
+  
   for (int i=0; i < (int)supportedTypes_.size(); i++)
-    if (supportedTypes_[i].type == _type) {
-
+    if (supportedTypes_[i].type & _type || supportedTypes_[i].type == _type) {
 
+      QString filters = supportedTypes_[i].plugin->getLoadFilters();
+      //check extension
+      if ( ! filters.contains( "*." + fi.completeSuffix() ) )
+        continue;
+        
+      
       if ( OpenFlipper::Options::gui() ) {
         coreWidget_->statusMessage( tr("Loading %1 ... ").arg(_filename));
         if ( !OpenFlipper::Options::loadingSettings() )
           coreWidget_->setStatus(ApplicationStatus::PROCESSING );
       }
 
+      int id = -1;
+
       //load file
-      int id = supportedTypes_[i].plugin->loadObject(_filename);
+      if ( checkSlot( supportedTypes_[i].object , "loadObject(QString,DataType)" ) )
+        id = supportedTypes_[i].plugin->loadObject(_filename, _type);
+      else
+        id = supportedTypes_[i].plugin->loadObject(_filename);
 
       if ( OpenFlipper::Options::gui() ) {
         if ( id != -1 )
@@ -239,6 +284,9 @@ int Core::loadObject( DataType _type, QString _filename) {
 
       return id;
     }
+    
+  emit log(LOGERR, tr("Unable to load object. No suitable plugin found!") );
+    
   return -1; //no plugin found
 }
 
@@ -343,14 +391,31 @@ void Core::slotLoad(QString _filename, int _pluginID) {
 
     BaseObjectData* object;
     PluginFunctions::getObject(id,object);
-
+    
     if ( !object ) {
-      emit log(LOGERR,tr("Object id returned but no object with this id has been found! Error in one of the file plugins!"));
-      return;
+
+      BaseObject* baseObj = 0;
+      GroupObject* group = 0;
+      
+      PluginFunctions::getObject(id,baseObj);
+      
+      if (baseObj){
+
+        group = dynamic_cast< GroupObject* > (baseObj);
+
+        if (group)
+          type = DATA_UNKNOWN;
+      }
+      
+      if ( group == 0 ){
+        emit log(LOGERR,tr("Object id returned but no object with this id has been found! Error in one of the file plugins!"));
+        return;
+      }
     }
     
     // Get the objects type
-    type = object->dataType();
+    if (object)
+      type = object->dataType();
   }
   
   // If the id was greater than zero, add the file to the recent files.
@@ -425,9 +490,9 @@ void Core::slotObjectOpened ( int _id ) {
       PluginFunctions::viewerProperties(i).drawMode( OpenFlipper::Options::defaultDrawMode(i) );
 
       if ( OpenFlipper::Options::defaultProjectionMode(i) == 0 )
-	PluginFunctions::orthographicProjection(i);
+        PluginFunctions::orthographicProjection(i);
       else
-	PluginFunctions::perspectiveProjection(i);
+        PluginFunctions::perspectiveProjection(i);
 
       PluginFunctions::setFixedView(OpenFlipper::Options::defaultViewingDirection(i), i );
     }
@@ -694,7 +759,7 @@ void Core::loadSettings(){
       if ( loadProgramSettings->isChecked() )
         applyOptions();
     } else if ( complete_name.endsWith("obj") ) {
-      openObjFile(complete_name);
+      loadObject(complete_name);
       if ( loadProgramSettings->isChecked() )
         applyOptions();
     }
@@ -717,7 +782,7 @@ void Core::loadSettings(QString _filename){
     openIniFile(_filename,true,true,true);
     applyOptions();
   } else if ( _filename.endsWith("obj") ) {
-    openObjFile(_filename);
+    loadObject(_filename);
     applyOptions();
   }