There was never an official released by Microsoft. Most "portable" versions found online are unofficial, third-party repacks that may carry security risks or stability issues.
: A free, web-based version of Word, Excel, and PowerPoint that works in any browser without installation. LibreOffice Portable
There was never an official released by Microsoft. Most "portable" versions found online are unofficial, third-party repacks that may carry security risks or stability issues.
: A free, web-based version of Word, Excel, and PowerPoint that works in any browser without installation. LibreOffice Portable microsoft office 2007 portable edition