windows extract all not working properly, trying to extract compressed content

for a colleague I have created a zip containing two projects, each having multiple docker images that are compressed to xx.tar inside them. The idea is that I can give her a zip file of the whole folder. She then extracts this which should result in the following structure:

folder
 ├─project1
 │  ├─docker1.tar
 │  └─docker2.tar
 └─project2
    └─docker3.tar

I am creating this zip using zip -er folder.zip folder on my mac. other unix and mac users have no problems with this but the windows users complain that there is not enough space on the drive, it requires 785PB(!) to extract.. what I can see is when I browse the zip on the windows machine is that it says the size of one of the .tar files is 785 PB for some reason..

why is windows behaving like this ?? the compressed tar is only 5.9gb. should I create the zip differently ? create an sfx? any ideas please?

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