On some Windows PC go get 7Zip from NINITE.COM like I did.
I was very unlucky and it looks like I fell victim of a very nasty bug in archiving software. As a consequence I can't access some very important archives I have recently created.
Bug is described here in detail: bugs.kde.org/show_bug.cgi?id=340456
In short, there was a mistake in packaging of the archiving software and as a consequence it used wrong library to compress and open files in zip format.
Now archives are completely unreadable, Windows claims the compressed folder is invalid or empty. Extracting them in Linux produces 1 file at best - useless single file with the size of entire archive. I checked those files when they were created, and they opened as usual, so there was no way to know something went wrong. Now, with my old system gone, I simply can't recreate the bug and access them in any way. All my backups contain those inaccessable files as well.
Here I share with you one of the files:
I tried to repair them somehow, but using -F and -FF in Linux and DiskInternals ZIP Repair helped nothing, as it seems they are not corrupted. I tried also few other tricks, but nothing worked. My only hope now is that Google Drive was able to display archive structure with filenames and so on. Online extractors I know of failed me unfortunately.
If anyone is able to open and extract above archive, please let me know. There are only some funny pictures inside, but I also archived photos from 2 years of my life and few of my works that cannot be recreated in any way. Thanks for any help.