diff --git a/trunk/paradiseo-mo/src/continuator/moVectorMonitor.h b/trunk/paradiseo-mo/src/continuator/moVectorMonitor.h
index 6114b4ed5..c0c651fea 100644
--- a/trunk/paradiseo-mo/src/continuator/moVectorMonitor.h
+++ b/trunk/paradiseo-mo/src/continuator/moVectorMonitor.h
@@ -157,6 +157,27 @@ public:
       return eotVec.size();
   }
 
+  /**
+   * to export the vector of values into one file
+   * @param _filename file name 
+   */
+  void fileExport(std::string _filename) {
+    // create file
+    ofstream os(_filename.c_str()); 
+
+    if (!os) {
+      string str = "moVectorMonitor: Could not open " + _filename;
+      throw runtime_error(str);
+    }
+    
+    for(unsigned int i = 0; i < size(); i++) {
+      os << getValue(i);
+      
+      os << std::endl ;
+    }
+    
+  }
+
   /**
    * @return name of the class
    */
diff --git a/trunk/paradiseo-mo/src/sampling/moSampling.h b/trunk/paradiseo-mo/src/sampling/moSampling.h
index 2cb90a66a..48034ed7c 100644
--- a/trunk/paradiseo-mo/src/sampling/moSampling.h
+++ b/trunk/paradiseo-mo/src/sampling/moSampling.h
@@ -125,7 +125,7 @@ public:
   }
 
   /**
-   * to export the vector of values into one file
+   * to export the vectors of values into one file
    * @param _filename file name 
    * @param _delim delimiter between statistics
    */
@@ -153,6 +153,20 @@ public:
     
   }
 
+  /**
+   * to export one vector of values into a file
+   * @param _col number of vector to print into file
+   * @param _filename file name 
+   */
+  void fileExport(unsigned int _col, std::string _filename) {
+    if (_col >= monitorVec.size()) {
+      string str = "moSampling: Could not export into file the vector. The index does not exists (too large)";
+      throw runtime_error(str);
+    }
+    
+    monitorVec[_col]->fileExport(_filename);
+  }
+
   /**
    * to get one vector of values
    * @param _numStat number of stattistics to get (in order of creation)
diff --git a/trunk/paradiseo-mo/tutorial/Lesson6/neutralWalk.cpp b/trunk/paradiseo-mo/tutorial/Lesson6/neutralWalk.cpp
index 1e8964dea..1102affd2 100644
--- a/trunk/paradiseo-mo/tutorial/Lesson6/neutralWalk.cpp
+++ b/trunk/paradiseo-mo/tutorial/Lesson6/neutralWalk.cpp
@@ -206,6 +206,9 @@ void main_function(int argc, char **argv)
 
   std::cout << "Last values:" << std::endl;
   std::cout << "Solution  " << solutions[solutions.size() - 1] << std::endl;
+
+  // export only the solution into file
+  sampling.fileExport(0, str_out + "_sol");
 }
 
 // A main that catches the exceptions