A powerful, completely free, and open-source office suite. It serves as an excellent offline alternative that fully supports Microsoft Office file formats (.docx, .xlsx, .pptx).

Source: Microsoft documentation

If you need Microsoft Office features, consider these safe and legal options: Microsoft 365

Microsoft no longer investigates, develops, or releases security updates to patch vulnerabilities discovered in the software.

Whether you prefer an or a cloud-based tool ?

: Users generally praise the customizable Ribbon and the "Backstage" view, which centralizes file management tasks like saving and printing. Critical Risks of "Pre-Activated" Links

To run the 64-bit version of Office 2010, you must be using a 64-bit Windows operating system. Go to product viewer dialog for this item.

: The current subscription-based service provides the latest versions of Word, Excel, and PowerPoint with ongoing security updates. Office on the Web : A completely version of Word, Excel, and PowerPoint is available at Office.com using a standard Microsoft account. Retail Licenses