diff --git a/config/preferences.json b/config/preferences.json
index e91956c..fc75c3d 100644
--- a/config/preferences.json
+++ b/config/preferences.json
@@ -47,15 +47,15 @@
   "hideEditorLineNumbers" : false,
   "hideEditorContextMenu" : false,
   "consoleLocation" : "Left",
-  "dataPanelLocation" : null,
-  "openDataFilesInDocTab" : false,
+  "dataPanelLocation" : "Left",
+  "openDataFilesInDocTab" : true,
   "noVariableEvaluationPropagation" : false,
   "processingScripts" : [ ],
   "asyncViewersUpdate" : false,
   "scanPlotDisabled" : false,
   "scanTableDisabled" : false,
   "cachedDataPanel" : false,
-  "dataExtensions" : "",
+  "dataExtensions" : "xml log txt h5 png tif tiff mat",
   "dataSubFiles" : "",
   "hideFileName" : false,
   "showEmergencyStop" : false,