What I can do is offer factual, safe, and legal context about this file and what it represents.
: Short for Microsoft Licensing Fulfillment . This signifies it is volume licensing media, which usually activates via a KMS or MAK key rather than a standard retail key.
SW DVD5 Office Professional Plus 2013 W32 English MLF X18-55138.ISO
Some users argue that since Office 2013 is no longer supported, it is “abandonware” and thus free. This is legally false. Microsoft still holds copyright. Using this ISO without a valid license is software piracy, subject to fines and, for businesses, audit liabilities.
The 64-bit version would be tagged X64 . The presence of W32 tells you this ISO is meant for maximum compatibility, not maximum performance.
: Indicates the software is formatted for a standard single-layer DVD (4.7 GB capacity), though the actual file size is approximately 1.4 GB to 1.5 GB.