diff --git a/tests/olevba/test_basic.py b/tests/olevba/test_basic.py
index 5b90f5c..798fba5 100644
--- a/tests/olevba/test_basic.py
+++ b/tests/olevba/test_basic.py
@@ -28,8 +28,12 @@ class TestOlevbaBasic(unittest.TestCase):
         CRYPT_DIR = join(DATA_BASE_DIR, 'encrypted')
         CRYPT_RETURN_CODE = 9
         ADD_ARGS = [], ['-d', ], ['-a', ], ['-j', ], ['-t', ]
-        EXCEPTIONS = ['autostart-encrypt-standardpassword.xlsm',
-                      'autostart-encrypt-standardpassword.xlsb']
+        EXCEPTIONS = ['autostart-encrypt-standardpassword.xlsm',   # These ...
+                      'autostart-encrypt-standardpassword.xlsb',   # files ...
+                      'dde-test-encrypt-standardpassword.xls',     # are ...
+                      'dde-test-encrypt-standardpassword.xlsx',    # decrypted
+                      'dde-test-encrypt-standardpassword.xlsm',    # per ...
+                      'dde-test-encrypt-standardpassword.xlsb']    # default.
         for filename in os.listdir(CRYPT_DIR):
             if filename in EXCEPTIONS:
                 continue