If you have a valid license key for Microsoft Office 2019 (e.g., from a previous purchase or a work/school account), you should only download the software from official Microsoft channels. The safest method is to use the , a legitimate utility from Microsoft that allows you to download the official, unmodified installation files directly from their servers. You can also log into your Microsoft account at office.com to find and download your associated software.
For comparison, the official, uncompressed release of Microsoft Office 2019 requires specific baseline specifications to run reliably: microsoft office 2019 highly compressed 500mb extra quality