If your Library has enabled the Export Results functionality then you can export up to 10,000 results of a search in one go.
1. Sign in to your My Research account
2. Run a search
3. Select the format you need and click accept.
You can also export results from a saved search in My ResearchNote:
Not all content can be exported, if your search contains these records you will need to re-run your search so that it only includes permitted records.