Office 2019 Language Pack Offline Installer ((exclusive))

Prevents the common "couldn't stream Office" or connection errors (like Error 30182-1) often seen with the 10MB web-based installers. Cons:

"We can't install the 32-bit version of Office...": Your installed Office is 64-bit. Change OfficeClientEdition="32" to "64" in your XML file and re-run the download.
Channel Mismatch: Office 2019 usually uses the PerpetualVL2019 channel. If you have a volume license version, ensure this matches in the XML.