If your main goal is to work with Word, Excel, and PowerPoint files without downloading a 3GB suite, you have excellent, legal, and safe options. Many are completely free and take up far less than 100MB.
If you legally own an Office 2016 license (or are willing to buy one), you can use the to create a custom install that omits Access, Publisher, OneNote, and language packs. This can reduce the install size to roughly 800–900MB – far from 100MB, but much smaller than default. Ms Office 2016 Highly Compressed 100mb
: Support for Office 2016 ended on October 14, 2025 . While it still functions, it no longer receives security updates, which may expose your system to vulnerabilities. If your main goal is to work with
: If you have previously purchased Office 2016, you can download it directly from your Microsoft Account or via the Microsoft Volume License Pack if applicable. Free Alternatives : Instead of risking a compromised "compressed" file, try LibreOffice Apache OpenOffice This can reduce the install size to roughly