Howto import CAMT053 XML with CiviBanking
Maybe you can try the Belgian format. See https://github.com/Project60/org.project60.banking/blob/6dd79b42941eea6e89ba8e8b6475af418fddb2ad/configuration_database/importer/xml/BE_CAMT53_v2.json  . Some discussion about this file can be found at https://github.com/Project60/org.project60.banking/issues/132 .