Načtení týdenních excelů

FOR w = 1 TO 52
    LET w = w;
    LET vFile = '\\server\adresar\T' & $(w) & '.xlsx';
    if NOT IsNull(FileTime('$(vFile)')) then
        Data:
        LOAD
            A as Article,
            ...
            '$(w)' as [Week]
        From [$(vFile)]
        (ooxml, no labels, header is 0 lines, table is List1);
    end if;
Next;