https://bz.apache.org/bugzilla/show_bug.cgi?id=61905

--- Comment #18 from Dominik Stadler <[email protected]> ---
The Stackoverflow discussion shed some light on this, the following seems to
make it work, in POI itself we can do this much cleaner, naturally:


    /**
     * Calling just {@code sheet.setActiveCell} has no effect when opening
     * the file with Microsoft Excel 2016.
     */
    private static void setActiveCell(HSSFSheet sheet, CellAddress address) {
        sheet.setActiveCell(address);

        // Following three private fields in a row cannot be the correct path.
        InternalSheet internalSheet = getField(sheet, "_sheet");
        SelectionRecord selection = getField(internalSheet, "_selection");
        CellRangeAddress8Bit[] ranges = getField(selection, "field_6_refs");

        ranges[0].setFirstColumn(address.getColumn());
        ranges[0].setLastColumn(address.getColumn());
        ranges[0].setFirstRow(address.getRow());
        ranges[0].setLastRow(address.getRow());
    }

    private static <T> T getField(Object obj, String fieldName) {
        try {
            Field field = obj.getClass().getDeclaredField(fieldName);
            field.setAccessible(true);
            return (T) field.get(obj);
        } catch (ReflectiveOperationException e) {
            throw new IllegalStateException(e);
        }
    }

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