You can open documents in OOReader from any app (Mail, Chrome,..), from the SD card or from the Cloud: Dropbox, Google Drive, Box and OneDrive.
OOReader needs an Internet connection to perform online conversion.
Warning, OOReader is not a document editor, the file content cannot be changed.
** - OpenOffice.orgTM is a registered trademark of Apache. - LibreOfficeTM is a trademark of The Document Foundation. - This app is not affiliated with, endorsed, or sponsored by LibreOffice or OpenOffice.