Collabora Online a web-based enterprise-ready edition of LibreOffice word processor and suite has built-in support for opening and writing Office Open XML files.It is available for Windows, macOS, Linux, Android, iOS, iPadOS and Chomebooks.
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Collabora Office enterprise-ready edition of LibreOffice has built-in support for opening and writing Office Open XML files.Atlantis Word Processor includes input and export filters for Office Open XML text documents (DOCX) beginning with version 1.6.3.Apple Inc.'s TextEdit, the built-in word processing program of Mac OS X, has very basic read and write support for Office Open XML text files starting with Mac OS X v10.5.Apple Inc.'s iPhone has read-only support for Office Open XML attachments to email.Apple Inc.'s iWork '08 suite has read-only support for Office Open XML word processing file formats in Pages.Compatibility is limited due to beta status of development. Adobe Buzzword beta, the online word processor by Adobe Systems, imports and exports Microsoft Word (DOC), Office Open XML (DOCX) and Word 2003 XML files.
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Export of Office Open XML text documents is supported beginning with version 2.6.5.