Export Data from excel to an XML schema has nested lists within nested lists

Is it possible to export Excel Data to an XML Files where the XML schema has nested lists within other nested lists?

What I have tried so far: Googling - I have found one thread that states it can not be done as Excel is inherently a flat table: https://social.msdn.microsoft.com/Forums/vstudio/en-US/8ded1f7a-2f9c-4c5a-aec5-c7bd6c594976/convert-data-from-excel-to-xml-when-schema-includes-list-of-lists?forum=vsto

Setting up fake data of two nested lists in an XML file and importing it into Excel. Excel's automatic recognition system works, but even if I do not change any of the displayed data, Excel doesn't allow me to export the file back into XML.

Here my sample XML Data:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<Daten>
    <Mitarbeiter>
        <Vorname>Lukas</Vorname>
        <Name>Rohr</Name>
        <Department>BDTP</Department>
        <Points>206</Points>
    </Mitarbeiter>
    <Workdays>
        <Holiday>1</Holiday>
        <Days>1</Days>
        <Days>1</Days>
        <Days>1</Days>
        <Days>1</Days>
        <Days>0</Days>
        <Days>0</Days>
        <Days>0</Days>
        <Sickdays>
            <Holiday>1</Holiday>
            <Days>1</Days>
            <Days>1</Days>
            <Days>1</Days>
            <Days>1</Days>
            <Days>0</Days>
            <Days>0</Days>
            <Days>0</Days>
        </Sickdays>
    </Workdays>
</Daten>