Step 1. Download from openoffice.org

# mkdir /home/backup# cd /home/backup# wget https://sourceforge.net/projects/openofficeorg.mirror/files/4.1.5/binaries/zh-CN/Apache_OpenOffice_4.1.5_Linux_x86-64_install-rpm_zh-CN.tar.gz/download ./# tar -xvf Apache_OpenOffice_4.1.5_Linux_x86-64_install-rpm_zh-CN.tar.gz# cd Apache_OpenOffice_4.1.5_Linux_x86-64_install-rpm_zh-CN# cd RPMS# rpm -Uvih *.rpm

Step 2. Install link on System menu

cd ../desktop-integration

rpm -Uvih openoffice4.1.5-redhat-menus-4.1.5-9789.noarch.rpm

When the installation completes, open office can be found on Applications menu.