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.docx file extension

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Microsoft Word (XML) document, generated with Microsoft Word 2007 (or later) that is saved in XML format.

The file is actually a set of XML files that are compressed. The individual XML files can be viewed by renaming the .docx file to .zip and treating it as a .zip file.

It is possible to open .docx files using earlier versions of Microsoft Word, but to do this you need the Microsoft Office Compatibility Pack. The Microsoft Office Compatibility pack is available from www.microsoft.com/downloads/details.aspx?FamilyId=941B3470-3AE9-4AEE-8F43-C6BB74CD1466&displaylang=en.

Earlier version of Microsoft Word (i.e. before Word 2007) saved documents using the .doc file extension.

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Can you add to this? Do you know of any applications not already listed which will work with .docx files, view .docx files or open .docx files? Are you able to contribute any additional reference information or file format information about .docx files or have you spotted any errors or omissions? If so please let us know by emailing us at feedback@cryer.co.uk - Thank you.