I modified the LibreOffice 3.5.1 .MSI to register all mso types, but it is not defaulting the save as type to Microsoft Word, Power Point, Excel, etc… Anyone have any insight as to what property these can be found in?
This seems like a useful feature for big deployments of LibreOffice in an organization.
Menu/Tools/Options/Load-Save/General - Always save as.
But there is always much better and strongly recommended to work with (ODF) LibreOffice native format files, and only save or export in Ms format to send at other people.
Thanks for your help, but that is not where I was talking about changing the setting. I am wanting to change it in the .MSI file so when I deploy it via GPO I wont need to manually change that setting on all 100 machines. As far as using .ODF, this is simply not an option at my company. Thank you.
I have no idea if this is possible. But I wouldn’t be surprised if it wasn’t… It is not a TDF goal that people use LO to perpetuate Microsoft’s closed proprietary file formats. LO exists to promote the use of open standards and formats 
The frustrating part about all of this is in OpenOffice3.0 we were able to copy a settings file/directory that OO built on install, via login script, to every machine that had OO installed on it. The more recent OpenOffice and LibreOffice do not build this file/directory anymore.
@Pedro1, I’m in agreement that TDF shouldn’t promote closed proprietary formats; hopefully a big deployment of LO using proprietary formats might be able to transition to a big deployment using open formats. Getting LO onto the machine is a good first step 
@qubit1, there is a option in Menu/Tools/Option/Load-Save - Document type - Always save as, But I must insist in convince users always use native format for work, only other formats at the end to deliver as needed.
@mariosv, Good points. In terms of round-trip fidelity, the native format (ODF) will always have the best support, so we should encourage people to use it when they need the highest level of continuity and fidelity.
Hi @CoryD12,
From the Deployment and Migration page on the wiki:
MSIEXEC silent installation doesn’t allow control of all parameters.
…default format for documents available in GUI under Tools → Options-Load/Save → General → Always save as cannot be set during silent installation.
But don’t give up yet – there is a way to hack this into place:
These settings are mostly personal and stored in a specific file
registrymodifications.xcu. So, if we replace this file after installation with a similar file with the correct above settings, we can control the selected feature.
The wiki page goes on to explain how to set all of that up, but that’s the general gist of it. Visit the wiki for all the gritty details.