This article explains how to save multiple attachments at once to the same folder on your computer using Outlook for Microsoft 365; Outlook 2019, 2016, 2013, 2010; Outlook.com; and Outlook for Mac.
How to Save Multiple Attachments with Microsoft Outlook
When you receive an email message with more than one attached file, it takes time to save each file separately to the same folder. In Outlook, it takes just one step to save all attached files to a single folder.
Here's how to save multiple email attachments in Outlook in one step:
Open the message in Outlook, either in a separate window or in the Outlook reading pane.