<m:Table id="testdata3" growing="true"  growingThreshold="10" growingScrollToLoad="true">
....
</m:Table>

<m:Panel expandable="true" expanded="true" width="100%" accessibleRole="Region" expand="onExpand" class="sapUiNoContentPadding customNoBorder">
    <m:headerToolbar>
...
    </m:headerToolbar>
    <m:content>
        <layout:Grid defaultSpan="XL2 L2 M6 S12">
        <layout:content>
            <m:Panel>
                <m:layoutData>
                <layout:GridData span="XL10 L10 M6 S12" width="100%" />
                </m:layoutData>
                <m:FlexBox alignItems="Center" justifyContent="SpaceBetween">
                    <m:Panel header="Sheet Uploader">
                        <up:FileUploader id="sheetUploader" name="sheetUploader"
                                    change="onXLSXupload"></up:FileUploader>
                            <m:Table id="testdata3"
                                 <m:columns></m:columns>
                                <m:items>
                                    <m:ColumnListItem id="columnsListItem" press="onPressListItem" type="Navigation">
                                    <m:cells></m:cells>
                                    </m:ColumnListItem>
                                </m:items>
                            </m:Table>
                    </m:Panel>
                </m:FlexBox>
            </m:Panel>
        </layout:content>
        </layout:Grid>
    </m:content>
</m:Panel>