I am in college right now and I found out that as of microsoft 2010 they now open .odt files albeit with a ton of warnings that my teachers have to click passed, like 5 of them. So I was looking to see if there were any actual issues of not with microsoft opening .odt files or if it was crap to scare people like it usually is.
Here is something I came across in my search:
and I feel the need to post here that a lot of times when it says unsupported, Libreoffice does have the feature, most likely openoffice as well. Actually in many cases the opensource office has had the feature first microsoft just picked to implement it differently to create incompatibility issues for those using the opensourced offices. If this is in the wrong place I am sorry, please move it top the correct place.