Detect relative reference style letters - different languages

I used Value property and FormulaR1C1 and both doesn't work for Excel 2000 Polish version. With Excel 2013 it works flawlessly.
The export hangs at moment where the stringgrid have a relative referencig formula string.
The example code I used you can find here (I used example With OLE Automation ): http://www.swissdelphicenter.ch/torr...ode.php?id=379