THE BEST ALTERNATIVE FOR MICROSOFT OFFICE
Is OpenOffice secure? The OpenOffice engineers take the security of the software very seriously. We take great care to ensure that our software is secure, and we will react promptly to any reports of suspected security vulnerabilities in our software.
Apache OpenOffice is free software. That means you are free to download it, free to install it on as many PCs as you like, free to pass copies to as many people as you like. You may use OpenOffice for any purpose without restriction: private, educational, public administration, commercial...
OpenOffice and close relative LibreOffice regularly win contracts to replace Microsoft Office, especially in government and educational markets. It's not a perfect match to Office, but OpenOffice is good enough for the majority of users who don't need to exchange complicated documents with Microsoft Office users.
The suite includes a robust array of office applications including a word processor, spreadsheet editor and database program. If you already have documents in Microsoft Office's proprietary file formats, including Word's DOC and DOCX formats, OpenOffice can open them without any intermediary conversion needed.