resolved fdo#76949 correct grammar is GRAM_OOXML

Regression introduced with ca8ca8c2 that
used GRAM_ENGLISH_XL_OOX instead, which is English UI function names
with OOXML reference syntax.

Change-Id: If6b73e85a45e57f6ef281d1edf8e34dec7cb9bb8

sc/source/filter/excel/xestream.cxx

@@ -821,7 +821,7 @@ OUString XclXmlUtils::ToOUString(
     ScDocument& rDocument, const ScAddress& rAddress, const ScTokenArray* pTokenArray )
 {
     ScCompiler aCompiler( &rDocument, rAddress, const_cast<ScTokenArray&>(*pTokenArray));
-    aCompiler.SetGrammar(FormulaGrammar::GRAM_ENGLISH_XL_OOX);
+    aCompiler.SetGrammar(FormulaGrammar::GRAM_OOXML);
 
     OUStringBuffer aBuffer( pTokenArray->GetLen() * 5 );
     aCompiler.CreateStringFromTokenArray( aBuffer );