Should you need it, you can repack .tpz archives (TAR.GZ) to standard ZIP archives with any of the available software that supports both these file types. Some alternative would be to use two programs, first to decompress .tpz files, the other to compress it again as .zip files.
Convert TAR.GZ compressed file archive to WinZIP Compressed ZIP archive.
We have found 2 software records in our database eligible for .tpz to .zip file format conversion.
Microsoft Windows software - convert tpz to zip on Windows
A free open source archive utility
Convert from tpz file format
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned tpz to zip. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
A compression utility that supports over 250 archive formats