diff --git a/pyceps/datatypes/study.py b/pyceps/datatypes/study.py
index e46b9d5..2d540d5 100644
--- a/pyceps/datatypes/study.py
+++ b/pyceps/datatypes/study.py
@@ -386,6 +386,7 @@ def save(self, filepath=''):
             points = ET.SubElement(proc, 'Points',
                                    count=str(len(cmap.points))
                                    )
+            # export data from EPPoint baseclass only
             for key in list(EPPoint('dummy', parent=cmap).__dict__):
                 if key == 'parent':
                     # don't save this
diff --git a/pyceps/fileio/cartoutils.py b/pyceps/fileio/cartoutils.py
index c798163..cb752b6 100644
--- a/pyceps/fileio/cartoutils.py
+++ b/pyceps/fileio/cartoutils.py
@@ -526,7 +526,6 @@ def read_force_file(fid, encoding='cp1252'):
                   't_lateralAngle': np.empty(0),
                   'systemTime': np.empty(0)}
 
-
     # read file version
     version = fid.readline().decode(encoding=encoding).rstrip()
     if not version.lower().endswith('contactforce.txt_2.0'):