It is incredibly blunt, at least for compliance exports — all you can do is export the whole workspace — and once exported it's just a ZIP of thousands of JSON files. There is no tool to look at it with. When I had to do an export I found a PHP script somebody had written to turn the JSON into thousands of HTML files, but otherwise it was grep and jq.
That sounds less promising, I had hoped you could select a single channel and export it. Or even better give permission to a user to be able to export one channel. We often have Slack channels shared with clients etc. and they have asked before to get a transcript of chats for reference. If you had fine-grained control, you could give that access to the project manager for the client in question, without having to share the access / have a central moderator handle all requests.
