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Do you need a license to create OpenXML files ?

Sep 19, 2014 at 11:43 AM
Hi everyone,

I'm not sure if this question was already asked but I didn't find anything.

My problem is: Because of the controversies around the OpenXML format, I'm not sure how it actually is patented/licensed.
Can someone tell me how far I can go with ClosedXML applications creating OpenXML files ?
For example, is it legal to distribute it/profit from it ?
I'm not talking about the MIT license for ClosedXML which I'm aware of, but in general about the fact that I'm distributing a file written in a proprietary format but not created by the proprietary software.
Maybe this question is dumb, but I was just wondering :)


Sep 19, 2014 at 2:07 PM
You can use it for pretty much any purpose:
Sep 19, 2014 at 2:17 PM
I already saw that Wikipedia article and it all sounds a little bit messy, but I think it's OK.
It's basically Microsoft saying 'You can do whatever you want with our thing' and you just wonder why they consider it 'theirs' if it's supposed to be open...
Anyway, thank you for your quick answer ! I think I'll be alright :)