diff --git a/doorstop/core/importer.py b/doorstop/core/importer.py
index 74db7cf1e..54757ceb0 100644
--- a/doorstop/core/importer.py
+++ b/doorstop/core/importer.py
@@ -189,7 +189,7 @@ def _file_xlsx(path, document, mapping=None):
 
     # Parse the file
     log.debug("reading rows in {}...".format(path))
-    workbook = openpyxl.load_workbook(path)
+    workbook = openpyxl.load_workbook(path, data_only=True)
     worksheet = workbook.active
 
     index = 0
diff --git a/doorstop/core/tests/files/formula.xlsx b/doorstop/core/tests/files/formula.xlsx
new file mode 100644
index 000000000..07b77e618
Binary files /dev/null and b/doorstop/core/tests/files/formula.xlsx differ
diff --git a/doorstop/core/tests/test_importer.py b/doorstop/core/tests/test_importer.py
index b5cde0e49..a92ffcd3e 100644
--- a/doorstop/core/tests/test_importer.py
+++ b/doorstop/core/tests/test_importer.py
@@ -349,6 +349,39 @@ def test_file_xlsx(self, mock_itemize):
         self.assertEqual(expected_data, data)
         self.assertIs(mock_document, document)
 
+    @patch('doorstop.core.importer._itemize')
+    def test_file_xlsx_formula(self, mock_itemize):
+        """Verify a XLSX file with formula can be imported."""
+        path = os.path.join(FILES, 'formula.xlsx')
+        mock_document = Mock()
+        # Act
+        with catch_warnings():
+            importer._file_xlsx(path, mock_document)
+        # Assert
+        args, kwargs = mock_itemize.call_args
+        logging.debug("args: {}".format(args))
+        logging.debug("kwargs: {}".format(kwargs))
+        header, data, document = args
+        expected_header = [
+            'uid',
+            'level',
+            'text',
+            'ref',
+            'links',
+            'active',
+            'derived',
+            'header',
+            'normative',
+            'reviewed',
+        ]
+        self.assertEqual(expected_header, header)
+        expected_data = [
+            ['REQ001', '1.2.3', 'active', None, None, 1, 0, None, 1, None],
+            ['REQ002', '1.2.4', 'inactive', None, None, 0, 0, None, 1, None],
+        ]
+        self.assertEqual(expected_data, data)
+        self.assertIs(mock_document, document)
+
     @patch('doorstop.core.importer.add_item')
     def test_itemize(self, mock_add_item):
         """Verify item data can be converted to items."""