diff --git a/src/main/java/de/neemann/digital/core/memory/DataField.java b/src/main/java/de/neemann/digital/core/memory/DataField.java
index f43bb049b..0bf0ba37d 100644
--- a/src/main/java/de/neemann/digital/core/memory/DataField.java
+++ b/src/main/java/de/neemann/digital/core/memory/DataField.java
@@ -205,13 +205,23 @@ public class DataField {
      *
      * @param addr the address which value has changed
      */
-    public void fireChanged(int addr) {
+    private void fireChanged(int addr) {
         synchronized (listeners) {
             for (DataListener l : listeners)
                 l.valueChanged(addr);
         }
     }
 
+    /**
+     * Sets the data from the given data field
+     *
+     * @param dataField the data to set to this data field
+     */
+    public void setDataFrom(DataField dataField) {
+        data = Arrays.copyOf(dataField.data, size);
+        fireChanged(-1);
+    }
+
     /**
      * The listener interface
      */
diff --git a/src/main/java/de/neemann/digital/gui/components/DataEditor.java b/src/main/java/de/neemann/digital/gui/components/DataEditor.java
index bd792c057..ffa8ecef5 100644
--- a/src/main/java/de/neemann/digital/gui/components/DataEditor.java
+++ b/src/main/java/de/neemann/digital/gui/components/DataEditor.java
@@ -59,11 +59,7 @@ public class DataEditor extends JDialog {
         else
             localDataField = new DataField(dataField, size);
 
-        int cols = 16;
-        if (size <= 16) cols = 1;
-        else if (size <= 128) cols = 8;
-
-        if (dataBits > 20 && cols == 16) cols = 8;
+        final int cols = calcCols(size, dataBits);
 
         int tableWidth = 0;
         MyTableModel dm = new MyTableModel(this.localDataField, cols, modelSync);
@@ -115,7 +111,7 @@ public class DataEditor extends JDialog {
             getContentPane().add(buttons, BorderLayout.SOUTH);
 
             JMenuBar menuBar = new JMenuBar();
-            JMenu data = new JMenu(Lang.get("menu_data"));
+            JMenu data = new JMenu(Lang.get("menu_file"));
 
             data.add(new ToolTipAction(Lang.get("btn_clearData")) {
                 @Override
@@ -134,7 +130,8 @@ public class DataEditor extends JDialog {
                     if (fc.showOpenDialog(DataEditor.this) == JFileChooser.APPROVE_OPTION) {
                         fileName = fc.getSelectedFile();
                         try {
-                            localDataField = new DataField(fc.getSelectedFile());
+                            localDataField.setDataFrom(new DataField(fc.getSelectedFile()));
+                            dm.fireEvent(new TableModelEvent(dm));
                         } catch (IOException e1) {
                             new ErrorMessage(Lang.get("msg_errorReadingFile")).addCause(e1).show(DataEditor.this);
                         }
@@ -170,6 +167,15 @@ public class DataEditor extends JDialog {
         setLocationRelativeTo(parent);
     }
 
+    private int calcCols(int size, int dataBits) {
+        int cols = 16;
+        if (size <= 16) cols = 1;
+        else if (size <= 128) cols = 8;
+
+        if (dataBits > 20 && cols == 16) cols = 8;
+        return cols;
+    }
+
     /**
      * @return the data field
      */
diff --git a/src/main/resources/lang/lang_de.xml b/src/main/resources/lang/lang_de.xml
index 492206c76..d0fa8cd4d 100644
--- a/src/main/resources/lang/lang_de.xml
+++ b/src/main/resources/lang/lang_de.xml
@@ -1243,7 +1243,6 @@ Sind evtl. die Namen der Variablen nicht eindeutig?</string>
         Die ZIP-Datei enthält damit alle Dateien, die für den Betrieb der Schaltung erforderlich sind.</string>
     <string name="menu_labelPins">Ein- und Ausgänge benennen</string>
     <string name="menu_labelPins_tt">Für alle unbenannten Ein- und Ausgänge eine Bezeichnung setzen.</string>
-    <string name="menu_data">Daten</string>
 
     <string name="msg_errorOpeningDocumentation">Fehler beim Öffnen einer PDF-Datei!</string>
 
diff --git a/src/main/resources/lang/lang_en.xml b/src/main/resources/lang/lang_en.xml
index 2d431e895..0183aecf5 100644
--- a/src/main/resources/lang/lang_en.xml
+++ b/src/main/resources/lang/lang_en.xml
@@ -1234,7 +1234,6 @@ The names of the variables may not be unique.</string>
         The ZIP file thus contains all the files that are necessary for the operation of the circuit.</string>
     <string name="menu_labelPins">Label Inputs and Outputs</string>
     <string name="menu_labelPins_tt">Set a label to all inputs and outputs without a label.</string>
-    <string name="menu_data">Data</string>
 
 
     <string name="message">&lt;h1&gt;Digital&lt;/h1&gt;A simple simulator for digital circuits.
@@ -1322,7 +1321,7 @@ an &lt;a href=&quot;https://github.com/hneemann/Digital/issues/new?labels=enhanc
 Start export anyway?</string>
     <string name="msg_circuitIsRequired">To create a hardware description, a circuit must first be created and analyzed.
         A standalone truth table can not be used to generate a hardware description.</string>
-    <string name="win_romDialog">Used ROM's</string>
+    <string name="win_romDialog">Included ROM's</string>
     <string name="msg_noData">no data</string>
 
     <string name="ok">Ok</string>