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diff --git a/oox/inc/oox/xls/excelfilter.hxx b/oox/inc/oox/xls/excelfilter.hxx
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@@ -0,0 +1,103 @@
+/*************************************************************************
+ *
+ * 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_EXCELFILTER_HXX
+#define OOX_XLS_EXCELFILTER_HXX
+
+#include "oox/core/xmlfilterbase.hxx"
+#include "oox/core/binaryfilterbase.hxx"
+
+namespace oox {
+namespace xls {
+
+// ============================================================================
+
+class WorkbookHelper;
+
+class ExcelFilterBase
+{
+protected:
+    explicit            ExcelFilterBase();
+    virtual             ~ExcelFilterBase();
+
+    void                setWorkbookHelper( WorkbookHelper& rHelper );
+    WorkbookHelper&     getWorkbookHelper() const;
+    void                clearWorkbookHelper();
+
+private:
+    WorkbookHelper*     mpHelper;       /// Nonowning pointer to helper base.
+};
+
+// ============================================================================
+
+class ExcelFilter : public ::oox::core::XmlFilterBase, public ExcelFilterBase
+{
+public:
+    explicit            ExcelFilter(
+                            const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory >& rxGlobalFactory );
+    virtual             ~ExcelFilter();
+
+    virtual bool        importDocument() throw();
+    virtual bool        exportDocument() throw();
+
+    virtual sal_Int32   getSchemeColor( sal_Int32 nToken ) const;
+    virtual sal_Int32   getPaletteColor( sal_Int32 nPaletteIdx ) const;
+
+    virtual const ::oox::drawingml::Theme* getCurrentTheme() const;
+    virtual ::oox::vml::Drawing* getVmlDrawing();
+    virtual const ::oox::drawingml::table::TableStyleListPtr getTableStyles();
+    virtual ::oox::drawingml::chart::ChartConverter& getChartConverter();
+
+private:
+    virtual ::rtl::OUString implGetImplementationName() const;
+};
+
+// ============================================================================
+
+class ExcelBiffFilter : public ::oox::core::BinaryFilterBase, public ExcelFilterBase
+{
+public:
+    explicit            ExcelBiffFilter(
+                            const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory >& rxGlobalFactory );
+    virtual             ~ExcelBiffFilter();
+
+    virtual bool        importDocument() throw();
+    virtual bool        exportDocument() throw();
+
+    virtual sal_Int32   getPaletteColor( sal_Int32 nPaletteIdx ) const;
+
+private:
+    virtual ::rtl::OUString implGetImplementationName() const;
+};
+
+// ============================================================================
+
+} // namespace xls
+} // namespace oox
+
+#endif
+