Technically, Microsoft never released an official standalone "Portable" edition of Office 2013 that you can simply run from a USB drive without installation. However, the suite was designed with in mind through several official features:
This feature reflows documents into easy-to-read columns that act like a digital book, which is ideal for reviewing reports on a small screen or tablet. microsoft office 2013 portable work
Microsoft released dedicated versions of Word, Excel, and PowerPoint for Windows Phone, iPhone, and Android during this era, allowing for basic editing and viewing on the go. Key Features for Mobile Professionals If you're working on a long document on
Maximizing Productivity: Microsoft Office 2013 for Portable Work and PowerPoint for Windows Phone
Office 2013 was the first version to fully integrate with the cloud. By signing into your account, you can access your documents from any computer with an internet connection, effectively making your "work" portable even if the software itself is installed on a fixed machine.
Office 2013 remembers where you left off. If you're working on a long document on your desktop and then open it later on a laptop, it automatically offers to take you back to the last page you edited.