Yes.
Linux is an operating system kernel. OpenOffice is an office suite (collection of office programs).
Yes. OpenOffice should be available in the repository for Linux, and is available on OpenOffice's website for Windows.
OpenOffice
OpenOffice is included with most Linux distributions and if you can meet the requirements of the distribution you should be all set.
OpenOffice and LibreOffice are both full office suites used in Linux distributions.
OpenOffice or LibreOffice can open PowerPoint presentations.
./ <program file name>
If OpenOffice /LireOffice isnt satisfying, try Scribus or LyX (I have no experience with those latter two but they are open source desktop publishing applications that run on Linux).
Yes.
Install your OpenOffice.org package from the package installer (through the RedHat network).If open office is a .org package then you need to install the wine package according to the Linux version you are using,then you can install and run all types of .org packages using the wine application in the Linux OS.
Scribus Linux Office Suite: OpenOffice [Free] Linux Office Suite: GNOME-Office [Free] Linux Office Suite: KOffice [Free] Linux Office Suite: SiagOffice [Free] Linux Office Suite: StarOffice
It can advertise free software like GNU/linux, Mozilla, OpenOffice.