Can we merge XML files in OIC

Summary:

We have requirement to merge the XML files that are written and created in OIC

Content (required):

In OIC we have a scenario where we extract invoices from Cloud, validate each invoice using some services. then write the invoice data to an XML file. Since this occurs in a loop, an XML file gets created for each invoice, if use the append action to merge these XML files, it results in a file where the header tag is repeated which makes the resulting XML file invalid.

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