.ODM File Extension

.ODM File Extension

File Type 1

OverDrive Media File

Developer OverDrive
3.2  |  29 Votes
Category Audio Files
Format N/A

What is an ODM file?

Media file shortcut to a file located in the Digital Library Reserve, such as an audio book, eBook, or music file; processed by the OverDrive Media Console, which will download the actual media file when the ODM file is opened.

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Programs that open ODM files

Updated December 28, 2007
File Type 2

OpenDocument Master Document

Developer OASIS
4.0  |  14 Votes
Category Text Files
Format Text and Binary

What is an ODM file?

An ODM file is a master text document created by Apache OpenOffice Writer or another OpenDocument word processor. It contains several separate .ODT files that are joined together into one document. ODM files may also include a table of contents and an index.

More Information
Screenshot of a .odm file in Apache OpenOffice Writer
ODM file open in Apache OpenOffice Writer

OpenOffice Writer is a free, open-source alternative to Microsoft Word. An OpenOffice Writer user who is producing a long document, such as a book, thesis, or report, may save that document as an ODM file.

ODM files are master documents that allow users to save document sections, such as chapters and report sections, as separate documents (ODT files). Each section can then be edited separately and re-combined within the master document. The ability to edit a long document in sections is meant to improve users' experience with OpenOffice Writer, because document sections load more quickly and are easier to work with than long documents.

Since ODM files allow users to easily split, edit, and re-combine a document's sections, the ODM format is especially useful to those writing group documents. Each writer can edit their section as a separate document, before combining it within a single ODM file.

How do I open an ODM file?

You can open an ODM file in OpenOffice Writer (cross-platform) or LibreOffice Writer (cross-platform). To do so, select File → Open... from either program's menu bar and then open your ODM file.

You can also use OpenOffice Writer to export an ODM file as a single ODT file, after you've finished editing the ODM file. To do so, select File → Export... from the program's menu bar.

Programs that open ODM files

Updated March 17, 2021

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