It is not recommended to export all at once as you will lose all your folders if you export in this way. However, if you don't care about your RefWorks folders and want to save time, it is possible to export all your references at once.
- Log into New RefWorks
- In the top right corner click Share and select Export References

- In the dialogue box that appears, select All references in 'All References" and choose RIS Format.

- Click Export to export all your saved references.