diff --git a/sources/OpenMcdf.Extensions/OLEProperties/PropertyFactory.cs b/sources/OpenMcdf.Extensions/OLEProperties/PropertyFactory.cs
index af36bad1..4055a491 100644
--- a/sources/OpenMcdf.Extensions/OLEProperties/PropertyFactory.cs
+++ b/sources/OpenMcdf.Extensions/OLEProperties/PropertyFactory.cs
@@ -103,6 +103,9 @@ public ITypedPropertyValue NewProperty(VTPropertyType vType, int codePage, bool
                 case VTPropertyType.VT_BLOB:
                     pr = new VT_BLOB_Property(vType, isVariant);
                     break;
+                case VTPropertyType.VT_CLSID:
+                    pr = new VT_CLSID_Property(vType, isVariant);
+                    break;
                 default:
                     throw new Exception("Unrecognized property type");
             }
@@ -699,6 +702,27 @@ public override void WriteScalarValue(BinaryWriter bw, object pValue)
 
         }
 
+        private class VT_CLSID_Property : TypedPropertyValue<object>
+        {
+            public VT_CLSID_Property(VTPropertyType vType, bool isVariant) : base(vType, isVariant)
+            {
+
+            }
+
+            public override object ReadScalarValue(System.IO.BinaryReader br)
+            {
+                byte[] data = br.ReadBytes(16);
+                return new Guid(data);
+            }
+
+            public override void WriteScalarValue(BinaryWriter bw, object pValue)
+            {
+                byte[] r = pValue as byte[];
+                if (r != null)
+                    bw.Write(r);
+            }
+        }
+
         private class VT_VariantVector : TypedPropertyValue<object>
         {
             private readonly int codePage;
diff --git a/sources/Test/OpenMcdf.Extensions.Test/OLEPropertiesExtensionsTest.cs b/sources/Test/OpenMcdf.Extensions.Test/OLEPropertiesExtensionsTest.cs
index 928958e0..51a68dd7 100644
--- a/sources/Test/OpenMcdf.Extensions.Test/OLEPropertiesExtensionsTest.cs
+++ b/sources/Test/OpenMcdf.Extensions.Test/OLEPropertiesExtensionsTest.cs
@@ -442,5 +442,17 @@ public void Test_DOCUMENT_SUMMARY_INFO_ADD_CUSTOM()
                 Assert.AreEqual(VTPropertyType.VT_FILETIME, propArray[4].VTType);
             }
         }
+
+        [TestMethod]
+        public void Test_CLSID_PROPERTY()
+        {
+            var guid = new Guid("15891a95-bf6e-4409-b7d0-3a31c391fa31");
+            using (CompoundFile cf = new CompoundFile("CLSIDPropertyTest.file"))
+            {
+                var co = cf.RootStorage.GetStream("\u0005C3teagxwOttdbfkuIaamtae3Ie").AsOLEPropertiesContainer();
+                var clsidProp = co.Properties.First(x => x.PropertyName == "DocumentID");
+                Assert.AreEqual(guid, clsidProp.Value);
+            }
+        }
     }
 }
diff --git a/sources/Test/TestFiles/CLSIDPropertyTest.file b/sources/Test/TestFiles/CLSIDPropertyTest.file
new file mode 100644
index 00000000..27b609bf
Binary files /dev/null and b/sources/Test/TestFiles/CLSIDPropertyTest.file differ