Store your .xlsx files in the cloud. You can open them on any computer with a browser or a mobile device using the official Excel Mobile app .
If you are looking for a guide on how to start or use a standard installation of Excel 2013, follow these basics from Universal Class : excel+2013+portable
Microsoft Office 2013 relies on deep system integration. Its components write numerous registry entries, install shared libraries (.DLL files), register class IDs, and tie activation tokens to the machine’s hardware ID. A true portable app does not touch the host system’s registry or leave files outside its own folder. Since Excel 2013 requires Windows Installer services, product activation, and frequently background licensing checks (even in volume-licensed editions), a genuinely portable version cannot exist without significant modification. Consequently, so-called “Excel 2013 Portable” executables are almost always unofficial repacks created by third parties using tools like VMware ThinApp, Cameyo, or Enigma Virtual Box. These wrappers intercept registry calls and redirect them to virtual storage. Even when they work, performance is often sluggish, printing and file association features break, and VBA-heavy spreadsheets may crash. Store your