Hi, Thank you for response. Documentation and samples is available to download (XSD, XML sample, documentation in XLS): https://www.esma.europa.eu/sites/default/files/library/disclosure_templates_1.3.1.zip There are 4 kinds of files and most problematic for us is "099" DRAFT1auth.099.001.04_1.3.0.xsd / DRAFT1auth.099.001.04_non-ABCP Underlying Exposure Report.xml Unpacked and biggest XML file is up to 4,7 GB but most problematic is not size but complex, nested structure. Have you ever struggled with such complex and huge XMLs?
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