diff --git a/src/cantor_part.cpp b/src/cantor_part.cpp
--- a/src/cantor_part.cpp
+++ b/src/cantor_part.cpp
@@ -496,13 +496,14 @@
 
 void CantorPart::exportToLatex()
 {
-    // this slot is called whenever the File->Save As menu is selected,
-    QString filter=i18n("*.tex|LaTeX Document");
-
     QString file_name = QFileDialog::getSaveFileName(widget(), i18n("Export to LaTeX"), QString(), QString());
 
     if (file_name.isEmpty() == false)
+        {
+        if (!file_name.endsWith(QLatin1String(".tex")))
+            file_name += QLatin1String(".tex");
         m_worksheet->saveLatex(file_name);
+        }
 }
 
 void CantorPart::guiActivateEvent( KParts::GUIActivateEvent * event )
diff --git a/src/lib/latexresult.cpp b/src/lib/latexresult.cpp
--- a/src/lib/latexresult.cpp
+++ b/src/lib/latexresult.cpp
@@ -119,7 +119,7 @@
 {
     qDebug()<<"saving textresult "<<toHtml();
     QDomElement e=doc.createElement(QLatin1String("Result"));
-    e.setAttribute(QLatin1String("type"), QLatin1String("latex"));
+    e.setAttribute(QLatin1String("type"), QLatin1String("application/x-latex"));
     QUrl url= EpsResult::data().toUrl();
     e.setAttribute(QLatin1String("filename"), url.fileName());
     QDomText txt=doc.createTextNode(code());
diff --git a/src/worksheet.cpp b/src/worksheet.cpp
--- a/src/worksheet.cpp
+++ b/src/worksheet.cpp
@@ -949,7 +949,10 @@
     query.setQuery(QUrl(stylesheet));
     QString out;
     if (query.evaluateTo(&out))
-        stream << out;
+        // Transform HTML escaped special characters to valid LaTeX characters (&, <, >)
+        stream << out.replace(QLatin1String("&amp;"), QLatin1String("&"))
+                     .replace(QLatin1String("&gt;"), QLatin1String(">"))
+                     .replace(QLatin1String("&lt;"), QLatin1String("<"));
     file.close();
 }