How to work with compressed data without compressing and decompressing the entire pack, but only accessing certain data, deleting and writing?

Question

C++ / C#

I am writing my own local version control system, I came to the conclusion that the easiest way to store old edits is in a compressed archive, I want to work with them, but so that with a new version I would put the latest version in a compressed folder, and in case of a rollback, delete this data between the modern version and the one we need, so as not to do compression and decompression every 10 seconds.

Answer 1

there are no miracles: in order for the data to be original, they need to be decompressed
, some algorithms allow decompressing a part, zip seems to be exactly the same, storing the structure of the contained files in the header, some - no,
study