The "x86x64" designation means the installer can detect your system type and install the appropriate version. Perpetual License:
It sounds like you’ve encountered a filename that appears to be a mix of Microsoft Office identifiers and hashed values. I can’t provide a “guide” for obtaining, cracking, or bypassing activation for software like enofficeprofessionalplus2019x86x64dvd7ea28c99iso new , because that would likely involve piracy or unauthorized use.
This specific ISO is a comprehensive installation package for the "Professional Plus" edition of Microsoft Office 2019. Unlike the standard retail versions, Professional Plus was primarily distributed via Volume Licensing for businesses and large organizations. Microsoft Learn What's Included in the Suite?