Microsoft word is the mostly used out of all the Microsoft office 2007 applications, but I have seen people some times in a situation when they were cursing Microsoft Word 2007.
It happens when you have saved some important document while using microsoft word 2007 with .docx extension and taken that file some where else where office 2003 or any version later than office 2007 is installed and you cannot open .docx files.
As .docx is the new file format recognised only by office 2007, and office 2003 or later versions of office cannot open .docx word document files.
What is .docx?
It is the default file extension for saving documents in word 2007. These docx documents are essentially a bunch of zipped XML documents
Let’s see how can you change the default file save format to .doc which is widely supported in the backward version of office 2007.
1. Open Microsoft Word, click office icon at the top left.
2. Now, Click the Word Options
3. Select Save in the left pane, then select Word 97-2003 Documents from the drop down.
4. Click OK
We hope you like this small tweak, but if still you have a .docx files which you want to open in office 2003 or later version of office, try using some free web services like Zamzar.com or docxtodoc.com that can convert .docx files to .doc