If you're looking for a free solution for basic document editing, consider using the web versions of Office applications through Office Online or exploring open-source office suites. For full-featured access and support, evaluating a purchase or subscription to a current version of Microsoft Office or Office 365 may be the best option.
Since Office 2007 does not receive security patches, it is vulnerable to modern cyber threats. Consider these official free ways to use Microsoft Office today: Office 2007 end of support - Microsoft Lifecycle