diff --git a/python/plugins/sextante/algs/mmqgisx/MMQGISXAlgorithms.py b/python/plugins/sextante/algs/mmqgisx/MMQGISXAlgorithms.py
diff --git a/python/plugins/sextante/algs/mmqgisx/mmqgisx_library.py b/python/plugins/sextante/algs/mmqgisx/mmqgisx_library.py
diff --git a/python/plugins/sextante/core/LayerExporter.py b/python/plugins/sextante/core/LayerExporter.py
@@ -49,11 +49,9 @@ def exportVectorLayer(layer):
         systemEncoding = settings.value( "/UI/encoding", "System" ).toString()
         output = SextanteUtils.getTempFilename("shp")
         provider = layer.dataProvider()
-        allAttrs = provider.attributeIndexes()
-        provider.select( allAttrs )
         useSelection = SextanteConfig.getSetting(SextanteConfig.USE_SELECTED)
         if useSelection and layer.selectedFeatureCount() != 0:
-            writer = QgsVectorFileWriter( output, systemEncoding,provider.fields(), provider.geometryType(), provider.crs() )
+            writer = QgsVectorFileWriter(output, systemEncoding, layer.pendingFields(), provider.geometryType(), provider.crs())
             selection = layer.selectedFeatures()
             for feat in selection:
                 writer.addFeature(feat)
@@ -66,9 +64,8 @@ def exportVectorLayer(layer):
             except UnicodeEncodeError:
                 isASCII=False
             if (not unicode(layer.source()).endswith("shp") or not isASCII):
-                writer = QgsVectorFileWriter( output, systemEncoding,provider.fields(), provider.geometryType(), provider.crs() )
-                feat = QgsFeature()
-                while provider.nextFeature(feat):
+                writer = QgsVectorFileWriter( output, systemEncoding, layer.pendingFields(), provider.geometryType(), provider.crs() )                
+                for feat in layer.getFeatures():
                     writer.addFeature(feat)
                 del writer
                 return output

diff --git a/python/plugins/sextante/core/QGisLayers.py b/python/plugins/sextante/core/QGisLayers.py
@@ -176,6 +176,10 @@ def getObjectFromUri(uri, forceLoad = True):
         for layer in layers:
             if layer.source() == uri:
                 return layer
+        tables = QGisLayers.getTables()
+        for table in tables:
+            if table.source() == uri:
+                return table            
         if forceLoad:
             settings = QSettings()
             prjSetting = settings.value("/Projections/defaultBehaviour")

diff --git a/python/plugins/sextante/outputs/OutputTable.py b/python/plugins/sextante/outputs/OutputTable.py
@@ -16,20 +16,23 @@
 *                                                                         *
 ***************************************************************************
 """
-from sextante.core.SextanteTableWriter import SextanteTableWriter
 
 __author__ = 'Victor Olaya'
 __date__ = 'August 2012'
 __copyright__ = '(C) 2012, Victor Olaya'
 # This will get replaced with a git SHA1 when you do a git archive
 __revision__ = '$Format:%H$'
 
+from sextante.core.SextanteTableWriter import SextanteTableWriter
+from sextante.core.SextanteUtils import SextanteUtils
 from sextante.outputs.Output import Output
 
 from PyQt4.QtCore import *
 
 class OutputTable(Output):
 
+    compatible = None
+
     def getFileFilter(self,alg):
         exts = ['csv']
         for i in range(len(exts)):
@@ -40,8 +43,16 @@ def getDefaultFileExtension(self, alg):
         return alg.provider.getSupportedOutputTableExtensions()[0]
 
     def getCompatibleFileName(self, alg):
-        #TODO!!!
-        return self.value
+        '''Returns a filename that is compatible with the algorithm that is going to generate this output.
+        If the algorithm supports the file format of the current output value, it returns that value. If not, 
+        it returns a temporary file with a supported file format, to be used to generate the output result.'''
+        ext = self.value[self.value.rfind(".") + 1:]
+        if ext in alg.provider.getSupportedOutputTableExtensions:
+            return self.value
+        else:
+            if self.compatible is None:                            
+                self.compatible = SextanteUtils.getTempFilename(self.getDefaultFileExtension(alg))
+            return self.compatible;
 
     def getTableWriter(self, fields):
         '''Returns a suitable writer to which records can be added as a

diff --git a/python/plugins/sextante/parameters/ParameterTable.py b/python/plugins/sextante/parameters/ParameterTable.py
@@ -43,29 +43,19 @@ def setValue(self, obj):
             else:
                 return False
         if isinstance(obj, QgsVectorLayer):
-            source = unicode(obj.source())
-            if source.lower().endswith("dbf") or source.lower().endswith("csv"):
-                self.value = source
-                return True
-            elif source.endswith("shp"):
-                self.value = source[:-4] + "dbf"
-                return True
-            else:
-                return False
+            source = unicode(obj.source())           
+            self.value = source
+            return True            
         else:
             layers = QGisLayers.getVectorLayers()
             for layer in layers:
                 if layer.name() == self.value:
                     source = unicode(layer.source())
-                    if source.endswith("dbf") or source.endswith("csv"):
-                        self.value = source
-                        return True
+                    self.value = source
+                    return True
             val = unicode(obj)
-            if val.endswith("dbf") or val.endswith("csv"):
-                self.value = val
-                return os.path.exists(self.value)
-            else:
-                return False
+            self.value = val
+            return os.path.exists(self.value)            
 
     def serialize(self):
         return self.__module__.split(".")[-1] + "|" + self.name + "|" + self.description +\