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OAS

oas icon

Microsoft Outlook Attachment Sniffer data

File type: Email related data file

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 stores link to e-mail attachment.

Found 2 different file type records with the same oas filename suffix.

What is oas file?

File type category:
Email related data file

Date updated: April 15, 2024

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.

How to open oas file?

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

How to convert oas file?

Conversion to other formats is not possible.

Suggested software to open oas file:

Associated software actions with the oas file

Software apps that create oas files:

Software apps that import oas files:

Software applications that handle other tasks involving oas files:

Fujitsu OAS document

File type category:
Document file

Date updated: November 15, 2018

Record marked as obsolete and not updated for a long time.

The oas file extension is also used by some Japanese word processor for its  document file format (Fujitsu OAS).

Most likely some old format without support. No further information could be found.

MIME types:
application/vnd.fujitsu.oasys

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