How to Download Attachment From Outlook Online?

Official steps to download, save and open attachments.

Fact-checked Reviewed by Aswin Vijayan Updated November 14, 2026 Based on 1 sources
Summary

Download an attachment from Outlook online in 3 steps. Open the attachment menu and select Download. Select Download all to save every file in a message. Save to OneDrive stores the file in your cloud storage. Outlook blocks unsafe file types like EXE and BAT. Steps follow the official page for the new Outlook.

Attachments in Outlook online open in a preview first. Saving a copy to your computer needs one more click on the attachment menu.

Facts follow Microsoft Support the article on opening, saving and editing Outlook attachments. Microsoft lists Outlook.com and the new Outlook for Windows among the products. Our review text shows the new Outlook steps only.

How to Download an Attachment From Outlook Online?

  1. Open the message with the attachment.
  2. Select the dropdown arrow next to the attachment.
  3. Select Download to save one file. Select Download all to save every attachment in the message.
  4. Select a folder and select Save.

You can also drag an attachment to your desktop. Outlook opens the save dialog in the last folder you used.

How to Save an Attachment to OneDrive?

Select the dropdown arrow and select Save to OneDrive. Microsoft states that files you edit in the browser go to the OneDrive attachments folder.

How to Open and Edit an Attachment?

  • Preview. Click the attachment in the Reading Pane or select Preview from the dropdown.
  • App option. Select an app specific option like Open in Word.
  • Browser edit. Select Edit in Browser.
  • Desktop edit. Select Edit in desktop app when Office is installed.

According to Microsoft, unsupported file types need a download and an app to open them.

Why does Outlook Block Some Attachments?

Outlook accepts many file types and blocks potentially unsafe attachments. Microsoft names BAT, EXE, VBS and JS files as examples and links a separate article on attachment restrictions.

What does Microsoft Not Say?

  • Steps for the Outlook on the web tab in the text we reviewed.
  • Steps for the classic Outlook tab in the same text.
  • Fixes for a failed download or an attachment that will not open.
  • Size limits for downloads.

Related reading: how to fix an Outlook attachment download error and how to fix attachments that will not open in Outlook.

Frequently Asked Questions

How do I Download an Attachment in Outlook Online?

Select the dropdown arrow next to the attachment and select Download. Choose a folder and select Save.

How do I Save All Attachments at Once?

Select Download all from the attachment dropdown. Outlook saves every attachment in the message.

Can I Save an Attachment to OneDrive?

Yes. Select Save to OneDrive from the attachment dropdown.

Why does Outlook Block My Attachment?

Outlook blocks potentially unsafe file types like BAT, EXE, VBS and JS. Microsoft links a separate article on attachment restrictions.

Does Microsoft Describe Download Errors on This Page?

No. Microsoft lists the steps to open, save and edit attachments only.

Key Takeaways

  • Select Download from the attachment dropdown to save one file.
  • Select Download all to save every attachment in a message.
  • Save to OneDrive stores a copy in your cloud storage.
  • Outlook blocks unsafe file types like EXE and VBS.
  • Microsoft lists no download error fixes on this page.

Sources and References

Facts follow Microsoft Support.

  1. Open, save and edit Outlook attachments (Microsoft Support) support.microsoft.com