diff --git a/src/Mod/Arch/ArchSchedule.py b/src/Mod/Arch/ArchSchedule.py
index 6bba11f566..5e6e2b0209 100644
--- a/src/Mod/Arch/ArchSchedule.py
+++ b/src/Mod/Arch/ArchSchedule.py
@@ -585,7 +585,7 @@ class ArchScheduleTaskPanel:
 
         """Imports a CSV file"""
 
-        filename = QtGui.QFileDialog.getOpenFileName(QtGui.QApplication.activeWindow(), translate("Arch","Import CSV File"), None, "CSV file (*.csv)");
+        filename = QtGui.QFileDialog.getOpenFileName(QtGui.QApplication.activeWindow(), translate("Arch","Import CSV file"), None, "CSV files (*.csv *.CSV)")
         if filename:
             filename = filename[0]
             self.form.list.clearContents()
@@ -618,7 +618,7 @@ class ArchScheduleTaskPanel:
             return
 
         filename = QtGui.QFileDialog.getSaveFileName(QtGui.QApplication.activeWindow(),
-                                                     translate("Arch","Export CSV File"),
+                                                     translate("Arch","Export CSV file"),
                                                      None,
                                                      "Comma-separated values (*.csv);;TAB-separated values (*.tsv);;Markdown (*.md)");
         if filename:
diff --git a/src/Mod/Arch/importIFClegacy.py b/src/Mod/Arch/importIFClegacy.py
index e77f522f95..cb313d7abd 100644
--- a/src/Mod/Arch/importIFClegacy.py
+++ b/src/Mod/Arch/importIFClegacy.py
@@ -1377,7 +1377,7 @@ def explore(filename=None):
     "explore the contents of an ifc file in a Qt dialog"
     if not filename:
         from PySide import QtGui
-        filename = QtGui.QFileDialog.getOpenFileName(QtGui.QApplication.activeWindow(),'IFC files','*.ifc')
+        filename = QtGui.QFileDialog.getOpenFileName(QtGui.QApplication.activeWindow(),'Open IFC file',None,'IFC files (*.ifc *.IFC)')
         if filename:
             filename = filename[0]
     if filename: