diff --git a/src/canvas.h b/src/canvas.h
--- a/src/canvas.h
+++ b/src/canvas.h
@@ -207,6 +207,7 @@ class Main : public Q3MainWindow, public
   void readFirstStateXML();
   void readLastStateXML();
   void exportCellData();
+  void exportCellData(QString);
   void saveStateXML();
   void snapshot();
   void savePars();
@@ -226,6 +227,8 @@ class Main : public Q3MainWindow, public
 
   void RandomizeMesh();
 
+  QString TimeStamp();
+
  signals:
   void SimulationDone(void);
   void ParsChanged(void);