Open weibo.com in your browser and log in to your account.
Navigate to https://api.weibo.com/chat#/chat to access the chat interface.
Install the Weibo Exporter Chrome extension from the Chrome Web Store. If you cannot find the extension, you may need to search for alternative Weibo export tools or check if the extension is available under a different name.
Once the extension is installed, follow the on-screen instructions provided by the Weibo Exporter extension to export your chat data. The extension will guide you through the export process.