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diff --git a/oox/inc/oox/xls/biffdetector.hxx b/oox/inc/oox/xls/biffdetector.hxx
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+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org.  If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+#ifndef OOX_XLS_BIFFDETECTOR_HXX
+#define OOX_XLS_BIFFDETECTOR_HXX
+
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/document/XExtendedFilterDetection.hpp>
+#include <cppuhelper/implbase2.hxx>
+#include "oox/helper/storagebase.hxx"
+#include "oox/xls/biffhelper.hxx"
+
+namespace com { namespace sun { namespace star {
+    namespace lang { class XMultiServiceFactory; }
+    namespace beans { struct PropertyValue; }
+} } }
+
+namespace oox { class BinaryInputStream; }
+
+namespace oox {
+namespace xls {
+
+// ============================================================================
+
+/** Detection service for BIFF streams or storages. */
+class BiffDetector : public ::cppu::WeakImplHelper2<
+            ::com::sun::star::lang::XServiceInfo,
+            ::com::sun::star::document::XExtendedFilterDetection >
+{
+public:
+    explicit            BiffDetector(
+                            const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory >& rxFactory );
+
+    virtual             ~BiffDetector();
+
+    /** Detects the BIFF version of the passed stream. */
+    static BiffType     detectStreamBiffVersion( BinaryInputStream& rInStream );
+
+    /** Detects the BIFF version and workbook stream name of the passed storage. */
+    static BiffType     detectStorageBiffVersion(
+                            ::rtl::OUString& orWorkbookStreamName,
+                            StorageRef xStorage );
+
+    // com.sun.star.lang.XServiceInfo interface -------------------------------
+
+    virtual ::rtl::OUString SAL_CALL
+                        getImplementationName() throw( ::com::sun::star::uno::RuntimeException );
+
+    virtual sal_Bool SAL_CALL
+                        supportsService( const ::rtl::OUString& rService )
+                            throw( ::com::sun::star::uno::RuntimeException );
+
+    virtual ::com::sun::star::uno::Sequence< ::rtl::OUString > SAL_CALL
+                        getSupportedServiceNames() throw( ::com::sun::star::uno::RuntimeException );
+
+    // com.sun.star.document.XExtendedFilterDetect interface ------------------
+
+    virtual ::rtl::OUString SAL_CALL
+                        detect( ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue >& orDescriptor )
+                            throw( ::com::sun::star::uno::RuntimeException );
+
+private:
+    ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory >
+                        mxFactory;
+};
+
+// ============================================================================
+
+} // namespace xls
+} // namespace oox
+
+#endif
+