Export Void envelop report only

Hello!  The best way to accomplish this is using the Envelope Report.  Once you’ve opened it, click “Edit Filters” in the header bar and then choose Voided from the Envelope Status filter; it’s the uppermost filter on that report.  

This will show you only those envelopes Voided in the time frame you specify in that header bar.

Please let us know if this resolves your issue and have an excellent day!