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diff --git a/include/comphelper/numbers.hxx b/include/comphelper/numbers.hxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#ifndef _COMPHELPER_NUMBERS_HXX_
+#define _COMPHELPER_NUMBERS_HXX_
+
+#include <com/sun/star/util/XNumberFormats.hpp>
+#include <com/sun/star/util/XNumberFormatter.hpp>
+#include <com/sun/star/lang/Locale.hpp>
+#include "comphelper/comphelperdllapi.h"
+
+//.........................................................................
+namespace comphelper
+{
+//.........................................................................
+
+    namespace staruno   = ::com::sun::star::uno;
+    namespace starlang  = ::com::sun::star::lang;
+    namespace starutil  = ::com::sun::star::util;
+
+    /// returns the ::com::sun::star::util::NumberFormat of the given key under the given formats
+    COMPHELPER_DLLPUBLIC sal_Int16 getNumberFormatType(const staruno::Reference<starutil::XNumberFormats>& xFormats, sal_Int32 nKey);
+
+    /// returns the ::com::sun::star::util::NumberFormat of the given key under the given formatter
+    COMPHELPER_DLLPUBLIC sal_Int16 getNumberFormatType(const staruno::Reference<starutil::XNumberFormatter>& xFormatter, sal_Int32 nKey);
+
+    /// returns the decimals of the given numeric number formatunder the given formats
+    COMPHELPER_DLLPUBLIC staruno::Any getNumberFormatDecimals(const staruno::Reference<starutil::XNumberFormats>& xFormats, sal_Int32 nKey);
+
+    /** returns the standard format for the given type and the given _rLocale
+    */
+    sal_Int32 getStandardFormat(
+            const staruno::Reference<starutil::XNumberFormatter>& xFormatter,
+            sal_Int16 nType,
+            const starlang::Locale& _rLocale);
+
+    /** retrieves a the value of a given property for a given format key, relating to a given formatter
+    */
+    COMPHELPER_DLLPUBLIC ::com::sun::star::uno::Any getNumberFormatProperty(
+        const ::com::sun::star::uno::Reference< ::com::sun::star::util::XNumberFormatter >& _rxFormatter,
+        sal_Int32 _nKey,
+        const OUString& _rPropertyName
+    );
+
+//.........................................................................
+}   // namespace comphelper
+//.........................................................................
+
+#endif // _COMPHELPER_NUMBERS_HXX_
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */