Retired Siemens employees and long-term partners sometimes have access to the legacy FTP. Search for file: SIZER_V323.zip . The MD5 checksum for a clean "extra quality" build should match community-posted hashes.
Siemens typically distributes SIZER via the Siemens Industry Online Support (SIOS) portal or the Siemens Digital Industries Software download center. siemens sizer 323 download extra quality
: You will need to create a free Siemens account. Because the software is subject to export control restrictions, your account may take a day or two to be verified before the download link becomes active. siemens sizer 323 download extra quality