Corrupted word document - XML correction

[RG89]

Hi,
I need your help I cannot access an important word document (more than 200 hours of work...).
I kept that file on a USB key and I discovered that there are no previous version available in that case... I only got an old back-up saved manually...
I tried many solutions : changing extension, open and repair, insertion in a new document, opening the file in another computer, recovery softwares....
I have finally been abled to extract and gain access to the "document.xml" file which have a CRC error by using Universalextractor.
=> However I'm not familiar to this XML language, and all the tags are in the same line which complicates the reading in Notepad++...
Firefox and www.xmlvalidation.com show errors, but I can't success in rectifying them..
Could anyone familiar to XML have a look ? I would be extremely grateful ! Thanks!
notabene : I don't know how to enclose a file or a zip in this post..

 

[randomizer]

If it's not sensitive you could copy it to somewhere like Pastebin and link to it from here.

 

[RG89]

Hi, thanks for that idea. I pasted the first part in here: http/pastebin.com/a0GdYU5y
Actually I can't paste everything, as what follows seems to be impossible to copy.
I uploaded the xml file here : http/www.filedropper.com/document_2