Hello Matsumoto, I recommend trying out the Teamcenter Extension. The Teamcenter Extension helps you create Teamcenter integrations for your Mendix apps. The extension generates the required domain model and microflows for you, based on your needs.
With respect to datasets, we support searching for Datasets (saved query search), retrieving all datasets for an ItemRevision (if necessary, you can apply filters) and attaching datasets to an ItemRevision.
You can find the extension on the marketplace here: https://marketplace.mendix.com/link/component/225544
In the end, the end, the generated microflows make use of the TcConnector.
You just need to pass the Dataset into the Download File activity and it will return a list of FileDocuments