diff --git a/chart2/qa/extras/chart2export.cxx b/chart2/qa/extras/chart2export.cxx
index 02795831467e..a10e8a89b3c7 100644
--- a/chart2/qa/extras/chart2export.cxx
+++ b/chart2/qa/extras/chart2export.cxx
@@ -468,6 +468,7 @@ void Chart2ExportTest::testTrendlineOOXML()
 
 void Chart2ExportTest::testTrendlineXLS()
 {
+    mbSkipValidation = true;
     load("/chart2/qa/extras/data/ods/", "trendline.ods");
     checkTrendlinesInChart(getChartDocFromSheet( 0, mxComponent));
     reload("MS Excel 97");
diff --git a/chart2/qa/extras/charttest.hxx b/chart2/qa/extras/charttest.hxx
index 9c174cf8e0a4..6f944324e5d1 100644
--- a/chart2/qa/extras/charttest.hxx
+++ b/chart2/qa/extras/charttest.hxx
@@ -150,7 +150,11 @@ std::shared_ptr<utl::TempFile> ChartTest::reload(const OUString& rFilterName)
         if(!mbSkipValidation)
             validate(pTempFile->GetFileName(), test::ODF);
     }
-
+    else if(rFilterName == "MS Excel 97")
+    {
+        if(!mbSkipValidation)
+            validate(pTempFile->GetFileName(), test::MSBINARY);
+    }
     CPPUNIT_ASSERT(mxComponent.is());
     return pTempFile;
 }