High compression isn't magic; it is the result of utilizing powerful algorithms like LZMA or PPMd, often wrapped in formats like .RAR or .7Z. To achieve a "highly compressed" state, redistributable files, redundant language packs, and non-essential help documentation are often stripped away. When you run the extraction, the installer rebuilds these components or utilizes a script to register the core binaries within Windows, giving you a functional version of Word, Excel, and PowerPoint at a fraction of the initial download size. Benefits of Using Highly Compressed Office Suites
There are three technical ways this is achieved: microsoft office highly compressed
If your goal is to make your existing Office files (Word, Excel, PPT) smaller, use these official methods: Zip and unzip files - Microsoft Support High compression isn't magic; it is the result
If you need a small-footprint Office solution, you do not need to risk "highly compressed" files. Here are legal, safe, and often free alternatives. Benefits of Using Highly Compressed Office Suites There