OpenXML SDK .docx files and Open Office

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I have an application that uses Microsoft's OpenXML SDK to generate .docx files. The latest version of Open Office can open .docx, but it won't open a file that my SDK code generates. If I open a generated file in Word and save it, then it will open in Open Office. That however doesn't really help me all that much because I want to see if I can get my application to be viable for people who don't own Word. Has anybody had any luck getting OpenXML SDK generated docs to open in Open Office?

Posted 23-Jul-11 14:45pm

DannyStaten

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vasya83 · Answer 1 · 2014-11-17T20:26:00

Better late than never, maybe it will be useful for someone.

To open docx generated by ooxml sdk its needed to 'patch' docx file (docx is just a zipped folder, so it could be done manually, or by code).
1. in file '_rels/.rels' you should remove slash from 'Target' attr of 'Relationship' nodes. For example, was
'<Relationship Target="/word/document.xml" Id="rId1" />'
should became
'<Relationship Target="word/document.xml" Id="rId1" />'

2. in file 'word/_rels/document.xml.rels' you should remove '/word/' from 'Target' attr of 'Relationship' nodes. For example, was
'<Relationship Target="/word/styles.xml" Id="rId1" />'
should became
'<Relationship Target="styles.xml" Id="rId1" />'

I've found this solution for Apache OpenOffice 4.1.0, imho it should work for other versions.

Philippe Mori · Answer 2 · 2011-07-23T15:15:00

In that case, the solution is to compare both file and see what differs and then update your code accordingly.

OpenXML is low level so there is a lot of details that are important...

I have used OpenXML SDK 2.0 but in my case, I was generating .xlsx files. The SDK tool is a must. It will allows you to compare the content of both files. Once you know how Word "fix" your file when saving it, you will have a good idea of what might cause the problem.

It will even allows you to get the C# code required to convert the first file to the second one.

It will still be a lot of works. As mentionned, the SDK is very low level and details are important to get right.

By the way are you creating your document from scrath of you start from an existing document that you modify. This last option might be a bit easier to get right.

Also, it help a lot to just do a few small changes and compare the files before and after to see what you should do.

By the way, in my case, I have try OpenOffice but I have tried Office 2003 (with compatibility pack), 2007, 2010 and Excel viewer and some details were required in some cases but not all. For example, the viewer require that all computations are done and also recnt version of Excel.

OpenXML SDK .docx files and Open Office

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