How to recover a corrupt microsoft word 2007 docx file

Try following methods if document opens:

1. Open & Repair
   
2. Save document as another file format
   
3. Insert safe portion in a new document
   

1. Insert corrupt document into a new document
   
2. Open document with WordPad
   

RecoveryFix for word to recover corrupted or lost MS Word Document with all files(.doc, .docx, .dot, .dotx) format and the software easily repairs multiple files also..http://www.mswordrecovery.com

There is a tool that could solve your problem i used it to recover word 2010 document.I hope it will help you also .The main reason why i am recommending is because it does not damage the available file further.You can download the tool from here .Its a demo version .If satisfied with it go for the full version as i did...

I should suggest you following program way

microsoft word fix software can repair MS Word files *.doc, *.docx, *.dot and *.dotx and .rtf file formats

Try this File > Open
Single click on your corrupt file to highlight it
Click the arrow by the Open tab in bottom right hand corner
Select Open and Repair

Good luck

DOC Repair Kit is a comprehensive Microsoft Word DOC repair tool with immense potential and an interface that makes the entire procedure a snap. Based on a lightning-fast proprietary core, the program knows how to repair Word DOC files in situations when other tools appear completely helpless.

For more information: http://www.doc.repair/

If this way didn't work, try to find the answer here: http://www.filerepairforum.com/forum/microsoft/microsoft-aa/word/392-how-to-repair-word-after-the-file-is-corrupted-and-cannot-be-opened

Easily repair all corrupt, damage or virus affected word files documents. To get more details click here:- Word Document Recovery Word File Recovery

There are various commercial tools available that could help you to fix a corrupt docx file. And there are also websites that provide this service for free. A google search is advisable.