Files with oa3 file extension are used by Fujitsu Oasys 3 program. They are used as some document file format.

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OA3 file extension - OASYS 3 document

What is oa3 file? How to open oa3 files?

File type specification:

Document file type icon Document file type

The oa3 file extension is associated with Fujitsu Oasys 3.

The OASYS 100 (Office Automation System) was the Fujitsu's first Japanese language word processor. All of Fujitsu's subsequent Japanese word processors were named OASYS.

Mime types:
application/vnd.fujitsu.oasys3

This oa3 file type entry was marked as obsolete and no longer supported file format.

This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.

Help how to open OA3 files:

Use OASYS to work with *.oa3 files.

How to convert file with extension OA3:

As far as we know, this .oa3 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.

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