Work with Attachments in Outlook online

Learn how to use Attachments add-in in Outlook online

Attachments is a handy tool that lets you quickly see all files used in your email conversation. It shows all attachments grouped by sender and date, and it lets you open any email right from the list. On this page you can see how easy it is to work with the add-in.

How to start the add-in

Once you enable the Attachments add-in for Outlook online, open any email conversation and click "Attachments" next to the store icon to open it.

Icon in the email conversation lets you open the add-in

It will quickly scan the email thread and show all messages that contain attachments. You will see the list with file names and such details as the file type, the sender, and the date they were received.

When a file with the same name and size is sent by different people, the add-in will show just the first copy of it.

Note! When a file is not attached but included into the body of the email, you will still see it in the list of attachments. However, due to the way such files are processed in different mail clients, they will be duplicated with every reply as they change in size and sometimes the name as well. There is nothing we can do on our side to change this behavior.

If no one in the conversation sent any files, the add-in will display a message informing you about it. See attachments in the email thread

Click on any file in the list to open the original email that contains the attachment. If you work in Outlook Web App on iPad, you can close the email by clicking on the area to the left of it.

How to find any attachment in the thread

If your email conversation grows too large, you can quickly find any file by using the following options.


Enter any part of the file name or its extension into the search field above the file list. The add-in will show all attachments that match your criteria in an instant. For example, you can enter "doc" to see all documents, or "ppt" to view all presentations. Quickly find attachments

Filter by sender

You can also see the attachments from particular people. Click on the "Senders" header and click on the name you want to hide. Click on the names again to return their attachments to the list. Filter out any senders

Sort by date

The add-in shows the date the attachment was received; it starts with the latest file by default. You can change the order of appearance: click on the Date header to see the oldest attachments first. Sort attachments by date

If the only detail you need to see is the name of the attachment, you can remove the columns with senders or dates: simply click on the Settings icon in the top right corner of the add-in window and click on any column you don’t want to see. You can exclude information about the sender and date altogether to get more space for the attachment names. The list will be updated simultaneously.

Show or hide senders and the date of getting attachment

If you have any questions or difficulties with the add-in, please use the contact form below to describe them, we will reply as soon as we can.

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