On average, compressing already-compressed data (like .msi installers or .cab archives inside Office) yields at best 10–15% size reduction, not . A 3.5 GB file cannot become 300 MB through conventional means. It violates Shannon’s source coding theorem.
: If you are a student or faculty member, your institution may provide a secure download link via their own IT services, such as the University at Buffalo software page . Critical Technical Specifications Full Installer Size Approximately 3.30 GB (Professional Plus) Disk Space Required Minimum 4.0 GB of available space System Requirements Windows 10/11 or Windows Server 2019; 4GB RAM recommended End of Support