Filename Extensions
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Details of extension .oa3

1 extension(s) and 0 alias(es) in our database

Below, you can find answers to the following questions:

  • What is the .oa3 file?
  • Which program can create the .oa3 file?
  • Where can you find a description of the .oa3 format?
  • What can convert .oa3 files to a different format?
  • Which MIME-type is associated with the .oa3 extension?
Fujitsu Oasys 3 Document .oa3 file icon

Fujitsu Oasys 3 Document

The OA3 file is a Fujitsu Oasys 3 Document. OASYS 100 (Office Automation SYStem) was the Fujitsu's first Japanese language word processor, announced as a Japanese language electronic typewriter in May 1980. All of Fujitsu's subsequent Japanese word processors were named "OASYS".
Detailed description not available
Category: Document files
Application: OASYS Viewer
Program name: -
Mime-type: application/
Magic bytes (HEX): -
Magic string (ASCII): -
Related extensions:
Fujitsu Oasys 2 Document
Fujitsu Oasys Document

Other types of files may also use the .oa3 file extension. If you have helpful information about .oa3 extension, write to us!

Is it possible that the filename extension is misspelled?

We found the following similar extensions in our database:

Ozone Messenger Program Support File
OpenAccess Database
HSQLDB Database
OpenArchitectureWare Workflow Data
Atari ST Pablo Paint Image

The .oa3 filename extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

oa (1), a3 (1), pa3 (1), oar (1), o3 (1), oaw (1)

Can't open a .oa3 file?

If you want to open a .oa3 file on your computer, you just need to have the appropriate program installed. If the .oa3 association isn't set correctly, you may receive the following error message:

Windows can't open this file:

File: example.oa3

To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select from a list of programs that are installed on your computer.

To change file associations:

  • Right-click a file with the extension whose association you want to change, and then click Open With.
  • In the Open With dialog box, click the program whith which you want the file to open, or click Browse to locate the program that you want.
  • Select the Always use the selected program to open this kind of file check box.

Supported operating systems

Windows Server 2003/2008/2012/2016, Windows 7, Windows 8, Windows 10, Linux, FreeBSD, NetBSD, OpenBSD, Mac OS X, iOS, Android