The Open XML Package Editor Power Tool source code is available on GitHub:
Open XML Package Editor Power Tool on GitHub
There is a binary version, but apparently it does not work with 2015.
Download: Binary version of Open XML Package Editor Power Tool that does not work with 2015.
Alternatively, another great tool is the OOXML Tools Extension for Chrome. You can take the same approach using this tool.
In the following screen-cast series, watch the OOXML Tools Extension for Chrome screen-cast:
Introduction to Open XML
I recommend watching the other screen-casts in this series as well.
Cheers, Eric
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This reply was modified 9 years, 8 months ago by
Eric White.