An oas file extension is related to the Microsoft Outlook Attachment Sniffer - a little utility for Outlook used to remove attachments from e-mails. An oas file store link to e-mail attachment.

There is one other file type using
the OAS file extension!

oas file icon.oas - Fujitsu OAS document file

Detailed description

Software that works with oas file extension

Add comment

Bookmark & share this page with others:

OAS file extension - Microsoft Outlook Attachment Sniffer file

What is oas file? How to open oas files?

File type specification:

Email related data file type icon Email related data file type

The OAS file extension is used for add-ins for Microsoft Outlook, a personal information manager, which is part of Microsoft Office, developed by Microsoft Corporation.

The oas files are plug-ins created by Outlook Attachment Sniffer utility. Outlook attachment sniffer is a little utility that removes attachment from Outlook's emails and replaces them by a link to as oas file.

For example a file attached to an email with the name MYFILE.XLS would be removed from the email and replaced by a link called MYFILE.OAS. The original attachment is then saved in an external folder.

The default software associated to oas file type:

Outlook Attachment Sniffer  Microsoft Windows software

Company or developer:
  rsbr Software

Outlook Attachment Sniffer is a powerful Outlook Add-In, which allows you to deal with specific tasks on e-mails, either on selected e-mails or on complete Outlook folders, as well as automatically on incoming e-mails.

Help how to open OAS files:

Double click on *.oas file in the Outlook message.

How to convert file with extension OAS:

As far as we know, this .oas file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.

List of software applications associated to the .oas file extension

Recommended software programs are sorted by OS platform (Windows, Mac OS X etc.) and possible program actions
that can be done with the file
: like open oas file, edit oas file, convert oas file, view oas file, play oas file etc. (if exist software for corresponding action in's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting of the oas files.

  • Import oas file
  • Others oas file

Software that import oas file - Microsoft Outlook Attachment Sniffer file

Click on the link to get more information about listed programs for import oas file action.

Microsoft Windows:

Main software associated with oas file by default:
Outlook Attachment Sniffer
Other suggested software:
Microsoft Outlook small icon Microsoft Outlook

Previous file extension
NWS file extension > Email related data file types

Next file extension
file extension OUTLOOK97


Follow us!

Enter any file extension without dot (e.g. pdf)
Search for file extension details and associated application(s)

RSS feed