Word 2007: How to enable editing on a read-only protected template

1. Rename word .docx file to .zip.  Unzip with your favorite zip program.
2. Open file (archive)/word/settings.xml in text editor.
3. Change property w:enforcement from "1" to "0" within node that reads something like this:

<w:documentProtection w:edit="forms" w:enforcement="0" w:cryptProviderType="rsaFull" w:cryptAlgorithmClass="hash" w:cryptAlgorithmType="typeAny" w:cryptAlgorithmSid="4" w:cryptSpinCount="100000" w:hash="KyPJG/+vxA4Let1njKgfCpSvJNc=" w:salt="dDf7X+CaLHLXe/H/1zZMqQ=="/>

4. Save and close file.
5. Rezip into another archive and rename file with .docx extension.

Viola!