Saves disk space and doesn't slow down your Windows boot time.

There is no official "portable" version of Microsoft Office 2013 provided by Microsoft

Office 2013 was designed for the Windows 8 era. It runs flawlessly on older netbooks, tablets with 2GB of RAM, or virtual machines. Later versions (2016 onward) have a heavier telemetry and graphics footprint. For a portable drive, where read/write speeds are limited by USB 2.0/3.0, the lighter 2013 engine feels snappy.

Two weeks later, Kaspersky published a report: “PortableAppVault Office 2013 Crack Contains Backdoor Targeting Journalists and NGOs.” The server in Novosibirsk was traced to a known cyber-mercenary group. The forum thread was deleted. Kapkan vanished.

Shifted to a native 16:9 widescreen aspect ratio and improved "Presenter View," which became highly valued for mobile users. Security and Stability Considerations

These alternatives are free, require no cracking, and run perfectly from a USB drive without touching the host Registry. They cannot run VBA macros as flawlessly as Excel 2013, but for 90% of users, they are superior.

If you must use an older portable version, run it inside a Windows Sandbox or a Virtual Machine disconnected from your main network.