For archiving hundreds of threads at once or specifically labeled conversations, use Google Takeout . and only check "Mail."
The "Print" function is the most reliable way to save a full conversation thread in a human-readable format like PDF. in Gmail. download gmail email thread
to "Save as PDF" in the print dialog box. Click Save and choose your local folder. 2. Export as .EML File (Best for Original Formatting) For archiving hundreds of threads at once or
to include every message in the conversation. download gmail email thread
(three vertical dots) next to the "Reply" button. Select "Download message" .