When using 7-Zip to extract the files for an NX Maintenance Release, (NX 12.0.1 or NX 12.0.2 for example), the extraction window displays 'Unavailable data' errors;
In this case, only the first file in the three-file archive was downloaded from the Siemens download server. All three parts are needed to extract the installation kit.
The download zip file for NX 12.0.1 has been split into 3 smaller files using WinZip instead of one large file. This has been done to make downloading without a download manager more reliable as the download time for each portion is shorter. This is done to avoid network timeout or other issues which result in failed downloads.
Because of this change, you will need to use a recent (updated) version of WinZip or 7-Zip to extract the downloaded files.
For NX 12.0.1 (and future NX Maintenance Release updates), there are 3 parts to the .zip file. You will need to download all three parts into the same temporary location and then use WinZip or 7-Zip to begin the extraction on the nx-12.0.1.zip file. Extracting all files from the nx-12.0.1.zip file will extract the files from all 3 parts.
You DO NOT need to run WinZIp or 7-Zip against the .z01 and .z02 files. This will be done automatically when extracting the .zip file.
Notes and References
OS Version: 1064