Have a large number of .doc files? Did you recently upgrade your word processor? Or get a new computer?
The good news is you don't need to manually open every document in order to re-save them to the .docx format. As Computeractive recently highlighted, with Doxillion Document Converter to help you, you can easily batch convert documents, transforming them all in one pass.
In their article on, How to convert text documents to other formats, the Computeractive staff detail how to use Doxillion for converting documents, praising the program as "a handy free tool that can convert a wide range of document formats with a couple of clicks from within Windows Explorer. [Requiring] no technical expertise." So if you have files to update, download Doxillion Document Converting Software to get the converting done quickly and easily.