Index: filter/source/msfilter/msdffimp.cxx
===================================================================
--- filter/source/msfilter/msdffimp.cxx	(revision 1343161)
+++ filter/source/msfilter/msdffimp.cxx	(working copy)
@@ -4810,6 +4810,14 @@
 		mpTracer->RemoveAttribute( aObjData.nSpFlags & SP_FGROUP
 									? rtl::OUString::createFromAscii( "GroupShape" )
 									: rtl::OUString::createFromAscii( "Shape" ) );
+    //Import alt text as description
+	if ( pRet && SeekToContent( DFF_Prop_wzDescription, rSt ) )
+	{
+		String aAltText;
+		MSDFFReadZString( rSt, aAltText, GetPropertyValue( DFF_Prop_wzDescription ), sal_True );
+		pRet->SetDescription( aAltText );
+	}
+    
 	return pRet;
 }
 
Index: sc/source/filter/excel/xeescher.cxx
===================================================================
--- sc/source/filter/excel/xeescher.cxx	(revision 1343161)
+++ sc/source/filter/excel/xeescher.cxx	(working copy)
@@ -554,6 +554,13 @@
     if( aCtrlProp.GetProperty( aCtrlName, CREATE_OUSTRING( "Name" ) ) && (aCtrlName.getLength() > 0) )
         aPropOpt.AddOpt( ESCHER_Prop_wzName, aCtrlName );
 
+    //Export description as alt text
+	if( SdrObject* pSdrObj = SdrObject::getSdrObjectFromXShape( xShape ) )
+	{
+		String  aAltTxt( pSdrObj->GetDescription(), 0, MSPROP_DESCRIPTION_MAX_LEN );
+		aPropOpt.AddOpt( ESCHER_Prop_wzDescription, aAltTxt );
+	}
+
     // write DFF property set to stream
     aPropOpt.Commit( mrEscherEx.GetStream() );
 
Index: sc/source/filter/excel/xiescher.cxx
===================================================================
--- sc/source/filter/excel/xiescher.cxx	(revision 1343161)
+++ sc/source/filter/excel/xiescher.cxx	(working copy)
@@ -109,6 +109,7 @@
 
 using ::rtl::OUString;
 using ::rtl::OUStringBuffer;
+using ::com::sun::star::uno::makeAny;
 using ::com::sun::star::uno::Any;
 using ::com::sun::star::uno::Exception;
 using ::com::sun::star::uno::Reference;
@@ -1965,6 +1966,20 @@
                 aLabel.Insert( '~', nPos );
         }
         rPropSet.SetStringProperty( CREATE_OUSTRING( "Label" ), aLabel );
+
+        //Excel Alt text <==> Aoo description
+		//For TBX control, if user does not operate alt text, alt text will be set label text as default value in Excel.
+		//In this case, DFF_Prop_wzDescription will not be set in excel file. 
+		//So In the end of SvxMSDffManager::ImportShape, description will not be set. But actually in excel,
+		//the alt text is the label value. So here set description as label text first which is called before ImportShape.
+		Reference< ::com::sun::star::beans::XPropertySet > xPropset( mxShape, UNO_QUERY );
+		try{
+		if(xPropset.is())
+			xPropset->setPropertyValue( CREATE_OUSTRING( "Description" ), makeAny(::rtl::OUString(aLabel)) );
+		}catch( ... )
+		{
+			OSL_TRACE( " Can't set a default text for TBX Control ");
+		}
     }
     ConvertFont( rPropSet );
 }
Index: sc/source/filter/inc/xiescher.hxx
===================================================================
--- sc/source/filter/inc/xiescher.hxx	(revision 1343161)
+++ sc/source/filter/inc/xiescher.hxx	(working copy)
@@ -497,6 +497,8 @@
 
     /** Derived classes will set additional properties for the current form control. */
     virtual void        DoProcessControl( ScfPropertySet& rPropSet ) const;
+    mutable ::com::sun::star::uno::Reference< ::com::sun::star::drawing::XShape >
+                        mxShape;        /// The UNO wrapper of the control shape.
 
 private:
     /** Reads a list of cell ranges from a formula at the current stream position. */
@@ -506,8 +508,6 @@
 
 private:
     const XclImpRoot&   mrRoot;         /// Not derived from XclImpRoot to allow multiple inheritance.
-    mutable ::com::sun::star::uno::Reference< ::com::sun::star::drawing::XShape >
-                        mxShape;        /// The UNO wrapper of the control shape.
     ScfRef< ScAddress > mxCellLink;     /// Linked cell in the Calc document.
     ScfRef< ScRange >   mxSrcRange;     /// Source data range in the Calc document.
     XclCtrlBindMode     meBindMode;     /// Value binding mode.
Index: svx/inc/svx/msdffdef.hxx
===================================================================
--- svx/inc/svx/msdffdef.hxx	(revision 1343161)
+++ svx/inc/svx/msdffdef.hxx	(working copy)
@@ -1220,4 +1220,7 @@
 void  *m_pvBits;              // raster bits of the blip.
 #endif
 
+//ALT_TXT_MSINTEROP
+#define MSPROP_DESCRIPTION_MAX_LEN	4096
+
 #endif