diff --git a/BGL/include/CGAL/boost/graph/IO/OFF.h b/BGL/include/CGAL/boost/graph/IO/OFF.h
index 4a577d86e2a..6f43f09ab27 100644
--- a/BGL/include/CGAL/boost/graph/IO/OFF.h
+++ b/BGL/include/CGAL/boost/graph/IO/OFF.h
@@ -186,7 +186,22 @@ bool write_OFF(std::ostream& os, const FaceGraph& g, const CGAL_BGL_NP_CLASS& np
   return IO::internal::write_OFF_BGL(os, g, np);
 }
 
-// document that too
+/*!
+  \ingroup PkgBGLIOFct
+
+  writes the graph `g` in the file `fname`, in the OFF format.
+
+  \cgalNamedParamsBegin
+    \cgalParamBegin{vertex_point_map} the property map with the points associated to the vertices of `g`.
+      If this parameter is omitted, an internal property map for
+      `CGAL::vertex_point_t` should be available in `FaceGraph`
+    \cgalParamEnd
+  \cgalNamedParamsEnd
+
+  \sa Overloads of this function for specific models of the concept `FaceGraph`.
+
+  \see \ref IOStreamOFF
+*/
 template <typename FaceGraph, typename CGAL_BGL_NP_TEMPLATE_PARAMETERS>
 bool write_OFF(const char* fname, const FaceGraph& g, const CGAL_BGL_NP_CLASS& np)
 {
diff --git a/Stream_support/include/CGAL/IO/OFF.h b/Stream_support/include/CGAL/IO/OFF.h
index a30cf810d35..9d7143a2b6d 100644
--- a/Stream_support/include/CGAL/IO/OFF.h
+++ b/Stream_support/include/CGAL/IO/OFF.h
@@ -176,6 +176,13 @@ bool read_OFF(std::istream& is,
                                                  CGAL::Emptyset_iterator()));
 }
 
+/*!
+ * \ingroup IOstreamFunctions
+ *
+ * reads the content of the file `fname` into `points` and `polygons`, in the OFF format.
+ *
+ * \see \ref IOStreamOFF
+ */
 template <typename PointRange, typename PolygonRange, typename CGAL_BGL_NP_TEMPLATE_PARAMETERS>
 bool read_OFF(const char* fname,
               PointRange& points,
@@ -185,7 +192,7 @@ bool read_OFF(const char* fname,
   std::ifstream in(fname);
   return read_OFF(in, points, polygons, np);
 }
-//todo doc this too
+
 template <typename PointRange, typename PolygonRange, typename CGAL_BGL_NP_TEMPLATE_PARAMETERS>
 bool read_OFF(const std::string& fname, PointRange& points, PolygonRange& polygons, const CGAL_BGL_NP_CLASS& np)
 {
@@ -239,6 +246,50 @@ bool write_OFF(std::ostream& os,
   return write_OFF(os, points, polygons, parameters::all_default());
 }
 
+/*!
+ * \ingroup IOstreamFunctions
+ *
+ * writes the content of `points` and `polygons` in  the file `fname`, in the OFF format.
+ *
+ * \see \ref IOStreamOFF
+ */
+template <typename PointRange, typename PolygonRange, typename CGAL_BGL_NP_TEMPLATE_PARAMETERS>
+bool write_OFF(const char* fname,
+               const PointRange& points,
+               const PolygonRange& polygons,
+               const CGAL_BGL_NP_CLASS& np)
+{
+  std::ofstream os(fname);
+  Generic_writer<std::ostream, File_writer_OFF> writer(os);
+  return writer(points, polygons, np);
+}
+
+template <typename PointRange, typename PolygonRange>
+bool write_OFF(const char* fname,
+               const PointRange& points,
+               const PolygonRange& polygons)
+{
+  return write_OFF(fname, points, polygons, parameters::all_default());
+}
+
+template <typename PointRange, typename PolygonRange, typename CGAL_BGL_NP_TEMPLATE_PARAMETERS>
+bool write_OFF(const std::string& fname,
+               const PointRange& points,
+               const PolygonRange& polygons,
+               const CGAL_BGL_NP_CLASS& np)
+{
+  return write_OFF(fname.c_str(), points, polygons, np);
+}
+
+template <typename PointRange, typename PolygonRange>
+bool write_OFF(const std::string& fname,
+               const PointRange& points,
+               const PolygonRange& polygons)
+{
+  return write_OFF(fname, points, polygons, parameters::all_default());
+}
+
+
 } // namespace CGAL
 
 #endif // CGAL_IO_OFF_H