You can attach any kind of file that can be accessed from your computer or through your network to any item you create in your mailbox.

1. In a message, calendar item, or contact, click the attach file icon on the toolbar.
   
2. In the Attach Files dialog box, type the path of the file you want to attach, or click Browse to locate the file.
   
3. If you use Browse, highlight the file you want to attach, and then click Open to add it to the attachments list.
   
4. Click Attach, and the file name will appear in the Attach Files dialog box.
   
5. To change the file you selected, click Browse, and then locate the file you want.
   
6. To attach more than one file, click Choose more files in the Attach Files dialog box.
   
7. To return to the item, click Attach to attach the selected files or click Cancel to return to the item without attaching the files.
   

You can remove an attachment from an item.

1. Open the item, and then click the attachment you want to remove.
   
2. Press DELETE on the keyboard to remove the attachment.
   

When an item includes an attachment, a paper clip icon is shown next to the item in the list window.

When the item is opened or previewed, the name of the attached file appears in the item information. Some attachments, such as .txt files and .gif files, are opened directly by the Web browser.

1. Click the attachment file name located in the message heading information. You have the option to open the attachment using the appropriate application or save the attachment to disk.
   
2. You can also use Open as Web Page to open the attachment using your Web browser.
   

Outlook Web App allows you to send and receive many common files types. Some files types may be blocked, or you may be forced to save them on your computer before you can open them.

By default, Outlook Web App allows you to open attached Word, Excel, PowerPoint, text files and many media files directly. Your administrator may add or remove file types to the list of allowed file types.

This table lists the default file name extensions and MIME types that you can open in Outlook Web App:

File name extensions allowed by default	MIME types allowed by default
.rpmsg, xls, .xlsx, .xlsm, .xlsb, .pptx, .pptm, .ppsx, .ppsm, .doc, .docx, .docm, .xls, .wmv, .wma, .wav, vsd, .txt, .tif, .rtf, .pub, .ppt, .png, .pdf, .one, .mp3, .jpeg, .gif, .doc, .bmp, .avi	image/jpeg, image/png, image/gif, image/bmp

If you want to edit an attachment, you need to download it to your computer first.

1. Open the item that has the original attachment.
   
2. Click the attachment, and then click Save on the File Download dialog box to save the attachment to your computer. Or right-click the attachment, and then click Save Target As on the menu.
   
3. Find and open the saved copy of the attachment on your computer, and then make the changes you want.
   
4. Save your changes and close the document.
   

The modified attachment is now saved on your computer.

In addition to attaching files, you can attach messages to messages.

1. Right-click the message that you want to send as an attachment.
   
2. Click Forward as Attachment. A new message will be opened with the message you selected added as an attachment.
   
3. Enter the recipients you want on the To and Cc lines. For more information about recipients, see Add or Remove Recipients.
   
4. Type a subject.
   
5. Type your message in the message body.
   
6. When you finish typing the message, click Send or press ALT+S to send it.
   

Other ways to attach a message to a message

• You can attach a message to a message by using a drag-and-drop operation.
  
  1. Create a new message by clicking New or pressing CTRL+N on the keyboard.
     
  2. Arrange the new message window so that you can see both the new message window and the list view which shows the message you want to attach.
     
  3. Drag the message you want to attach to the new message.
     
• You can attach a message to a message by using copy and paste.
  
  1. In the list view, click the message you want to attach to select it and press CTRL+C to copy it.
     
  2. Create a new message by clicking New or pressing CTRL+N on the keyboard.
     
  3. With the new message as the active window, press CTRL+V to attach the message you copied.
     

What else do I need to know?

• An attachment can be a file that's created in any program, for example, a Word document, an Office Excel spreadsheet, a .wav file, or a bitmap file. You can also remove attachments from an item.
  
• Some attachments may be removed or blocked by antivirus software used by your organization or by the organization of the recipients of your e-mail. If you have any questions about support for attachments, contact your technical support group.
  
• If you reply to a message that has an attachment, the attachment isn't included in the reply. Instead, a placeholder icon replaces the file. If you want an existing attachment to be included, forward the message instead of replying to it. For more information about how to reply to and forward messages, see Reply To or Forward a Message.
  
• Don't open an attachment sent in an e-mail unless you trust the content and the person who sent it to you. Attachments are a common method for spreading computer viruses. So we recommend that you use the Open as Web Page option when you open an attachment if it's available. Not all file types can be opened as a Web page.
  
• Long file names may be shortened in Outlook Web App before the files are attached. This doesn't affect the contents of the file. If you're using Internet Explorer 6 with Service Pack 2 or a later version, the attached file name is limited to 76 characters. If the file name is shortened to meet this limit, the first two characters of the file name may be changed. Earlier versions of Internet Explorer replace the long file name with a generic name, for example, filename[1].txt.
  
• The default size limits in Outlook Web App are 10 MB for a single attachment or 30 MB for an entire message including all attachments. Attachment and message size limits for your mailbox are set by your system administrator and may be different from the default limits.
  

What if I want to know more?

• Mail
  
• Calendar
  
• Contacts
  
• Tasks