Openshift uses Git to update files, however it will be handy to directly access files hosted on openshift through Filezilla(sFTP) the following information is needed to connect:
Domain:
SFTP://portal-sghomecare.rhcloud.com
User Name:
ssh://53a7b4094382ec5f65000016@portal-sghomecare.rhcloud.com/~/git/portal.git/
Leave the password field empty
The WordPress files are resided on the following directory:
/var/lib/openshift/53a7b4094382ec5f65000016/app-root/data