I have a zip file and want to know as much as possible about it. Some information is obvious like creation date etc. But what kind of information could be found by a forensic analysis?
You can use 'unzip' from fx. cygwin.
unzip -l Archive.zip in a terminal/cmd.exe. While it will list dates of the files archive (CTIME and MTIME, perhaps) these are attributes that can be changed by anyone. The creation date of the zip-file is just the time at which it was downloaded/copied to your PC.