1. Click the three-dot menu at the top right.
2. Go to Settings > Privacy, search, and services.
3. Under Clear browsing data, click Choose what to clear.
4. Choose a time range (e.g. “Last hour”, “Last 24 hours”, or “All time”).
5. Select the types of information you want to remove (e.g. cached images and files).
6. Click Clear now.

Reference: Microsoft: View and delete browser history in Microsoft Edge