Yes it is.
There are a number of websites that offer reliable and free downloads of open source software. Some of the best of these websites are SourceForge, CNet, and OpenOffice.
Short answer - No. Long answer - they are one of the partners who helped develop the OpenOffice software. OpenOffice is not owned by any single company. It is 'open source' meaning it is 'owned' by the community of end-users.
By definition - OpenOffice is a software suite. A software application is usually a single program rather than a collection or 'suite' as OpenOffice is.
People like the software because it's 'open source' - meaning anyone can make changes to it as they see fit (unlike MS Office which is copyright by Microsoft). OpenOffice is perfectly safe to use.
A software which's designers have decided to share the source code with everyone else is called open source.i.e. OpenOffice is based on open source code shared under GNU General Public License.
Open source software are not always free. Some of them can be commercial software. In the same way, some freeware are not open source. The term "Open Source" means the source code can be viewed by anyone but some open source products should be buy. Furthermore, a free software is not always a good software. It depends of your expectation upon the quality product. Libreoffice or Openoffice are good Microsoft Office-like suite but the documents they product may be incompatible or have a bad rendering when opened with the original Office suite. In general, your question can be answered with a "YES" but then again, it depends of which Open Source software you are talking to.
Open source software is software that allows the source code to be used. Oftentimes, they are free to use. Open source software is copyrighted.
Open GNU is a free software system that allows users to adapt the software to specific parameters. Applications like Openoffice are part of the Open GNU system.
I prefer open source software.
OpenOffice is a 'suite' of programs all linked together.
See the related link for the official Open Office web-site.
The two main differences are:- MS Office has to be paid for - OpenOffice is free to download, and... MS Office is a copyright program - OpenOffice is 'open source' This means that Microsoft will NOT licence the end user (you and me) to make changes to their program. Open source means OpenOffice is capable of being edited by the end user to suit their needs.