diff --git a/QDS.py b/QDS.py
index ca28f56..7033e45 100755
--- a/QDS.py
+++ b/QDS.py
@@ -15,6 +15,7 @@ from PyQt4.QtCore import *
 from PyQt4.QtGui import *
 
 import numpy as np
+import time
 import pyqtgraph as pg
 
 from Container import Conductivity, PowerComplex, Static, Peak, YAFF
@@ -241,20 +242,21 @@ class AppWindow(QMainWindow):
 
 
         # prepare header
-        header="# T        "
-        header = "{n1:13}{n2:13}".format(n1="# 0T", n2="1invT")
+        header = "# Date: {date}\n".format(date=time.ctime())
+        header += "{n1:13}{n2:13}".format(n1="# 0:T", n2="1:invT")
         pars = []
-        bname = os.path.splitext(self.filepath)[0]
+        base_filename = os.path.splitext(self.filepath)[0]
         # print "Registered Functions (saveFitResult): ",self.function_registry.get_registered_functions()
         varnum = 2  # T, invT are the first two columns
         for i_fcn, fcn in enumerate(self.function_registry.get_registered_functions()):
+            fit_function_name = fcn.id_string
             for i, name in enumerate(fcn.widget.names):  # get variable names
-                header += "{n:13}{n_sd:13}".format(n="%i%s"%(varnum, name), n_sd="%i%s_sd"%(varnum+1, name))
+                header += "{n:13}{n_sd:13}".format(n="%i:%s"%(varnum, name), n_sd="%i:%s_sd"%(varnum+1, name))
                 varnum += 2
             # write for each function extra file
-            name_fcn = "%s_%i.fit"%(bname, i_fcn)
-            f_fcn = open(name_fcn, 'w')
-            f_fcn.write("# %s\n"%(fcn.id_string))
+            fit_filename = "%s_%i.fit"%(base_filename, i_fcn)
+            f_fcn = open(fit_filename, 'w')
+            f_fcn.write("# %s\n"%fit_function_name)
             f_fcn.flush()
             np.savetxt(f_fcn, fcn.resampleData(self.data.frequency))
             f_fcn.close()