diff --git a/cellacdc/_main.py b/cellacdc/_main.py
index dda7c959..38f04f4e 100644
--- a/cellacdc/_main.py
+++ b/cellacdc/_main.py
@@ -1632,7 +1632,8 @@ def _showDataStructWin(self):
                 
                 self.dataStructWin.show()
                 self.dataStructWin.main()
-                self.restoreDefaultButtons()
+                if self.dataStructWin.bioformats_backend != 'python-bioformats': 
+                    self.restoreDefaultButtons()
             elif is_mac:
                 self.dataStructWin = (
                     dataStruct.InitFijiMacro(self)
diff --git a/cellacdc/dataStruct.py b/cellacdc/dataStruct.py
index 54c797a1..09c4abf1 100755
--- a/cellacdc/dataStruct.py
+++ b/cellacdc/dataStruct.py
@@ -1459,20 +1459,24 @@ def setPbarMax(self, max):
 
     def taskEnded(self):
         if self.worker.aborted and not self.worker.isCriticalError:
-            msg = QMessageBox(self)
-            abort = msg.critical(
-               self, 'Conversion task aborted.',
-               'Conversion task aborted.',
-               msg.Close
+            msg = widgets.myMessageBox(wrapText=False)
+            txt = html_utils.paragraph(
+                'Conversion task cancelled.'
+            )
+            msg.critical(
+               self, 'Conversion task cancelled.', txt
             )
             self.close()
         elif not self.worker.aborted:
-            msg = QMessageBox(self)
+            msg = widgets.myMessageBox(wrapText=False)
+            txt = html_utils.paragraph(
+                'Conversion task ended.<br><br>'
+                'Files saved to'
+            )
             abort = msg.information(
-               self, 'Conversion task ended.',
-               'Conversion task ended.\n\n'
-               f'Files saved to "{self.worker.exp_dst_path}"',
-               msg.Close
+               self, 'Conversion task ended.', txt,
+               commands=(self.worker.exp_dst_path,),
+               path_to_browse=self.worker.exp_dst_path
             )
             self.close()