For Office 2019 Professional Plus 32 bit:

1, Go to https://setup.office.com
2, Login with your Microsoft account
3, Fill the digital code in the form and then choose region/language
4, Confirm related information and will get the download link button at last.


For Office 2019 Professional Plus 64 bit:

1, Download startup file from the office site below:
2, Extract the file
3, Run setup64 at subdirectory folder and wait for installation is complete
4, Open any office application and fill the key to activate directly
    English Version Download Link
    Arabic Version Download Link
    Croatia Version Download Link
    Deutsch Version Download Link
    España Version Download Link
    French Version Download Link
    Greek Version Download Link
    Portugal Version Download Link
   Traditional Chinese Version Download Link