.OO3 File Extension

Are you having difficulty opening a file that ends with .OO3? Such files can be executed only by certain programs. If you cannot open the .OO3 file, it can be due to the following reasons: either you do not have an appropriate program to open it, or your file association is corrupted. For more information about this extension, please read the article below.

What is a .OO3 file?

.OO3 file belongs to the category of Data Files used in operating systems such as Windows 11, 10, Windows 7, Windows 8 / 8.1, Windows Vista, Windows XP.

oo3

Developer: The Omni Group

File Type: OmniOutliner 3 File

Category: Data Files

Format: N/A

.OO3 file is associated with OmniOutliner 3 File developed by The Omni Group, has a N/A Format and belongs to Data Files category.

Other file extensions

.t2b

CyBook Thumbnail Image

.der

DER Certificate File

.dem

Digital Elevation Model

.pwd

Pocket Word Document

.abt

Annotated Braille Text File