Sorts of OAS Files

Main OAS Affiliation

.OAS

File Ext:	.oas
Type:	Fujitsu OAS Document File

The file extension is associated with Fujitsu OAS; a Japanese word processing software for its document file format.

Author:	Fujitsu Limited
Class:	Text Files
Folder:	HKEY_CLASSES_ROOT\.oas

Software Programs That Open The Fujitsu OAS Document File:

OASYS Viewer by Fujitsu Limited

Windows

Other OAS File Associations

.OAS

File Ext:	.oas
Type:	Microsoft Outlook Attachment Sniffer Data

The file is a plugin made using Outlook Attachment Sniffer utility that removes attachments from Microsoft Outlook's emails replacing them by a link as an OAS file. For example; if an email attachment is named MYFILE.XLS, it is removed and replaced by a link called MYFILE.OAS

Author:	Microsoft Corporation
Class:	Uncommon Files

Software Programs That Open Microsoft Outlook Attachment Sniffer Data Files:

Outlook Attachment Sniffer by rsbr Software

Compatible with:

Windows

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OAS File Complications

Typical OAS Opening Challenges

Missing OASYS Viewer

If you attempt to load your OAS file, you experience a message such as "Can't Open OAS Files". When this happens, it is commonly due to OASYS Viewer missing in %%os%%. Your operating system cannot associate your OAS with OASYS Viewer, so double-clicking the file won't work.

Tip: When another OAS application is installed, you can choose to open it by selecting "Show Apps" and using that program.

Obsolete Version of OASYS Viewer

Sometimes your installed version of OASYS Viewer won't support your Fujitsu OAS Document File file. If you've got the wrong version of OASYS Viewer installed, you'll need to install the correct version. This problem is predominately due to having a Fujitsu OAS Document File file version that was created by a newer version of OASYS Viewer than what you have installed on your PC.

Tip: Investigate your OAS file by right-clicking and selecting "Properties" to find clues on what version you need.

Summary: In either case, the majority of problems opening OAS files are related to not having the correct software application installed on your computer.

Other Causes of OAS File Opening Problems

In the majority of cases, installing the right version of OASYS Viewer will resolve your issue. If you're still experiencing problems opening OAS files, there could be other computer problems. Issues that aren't software-related:

• OAS file references in the Windows Registry are broken
• Corruption of the OAS file description inside the Registry
• OASYS Viewer or another OAS application experienced a flawed installation
• Something has caused file corruption of your OAS
• OAS file integrity has been compromised by malware
• Drivers associated with OAS software need to be updated
• Windows cannot load your Fujitsu OAS Document File file due to insufficient resources (eg. RAM)