Every ZIP file starts with the initials "PK" in its raw code, a tribute to its creator, Phil Katz. Even for a single file, this standard structure is applied.
ZIP uses algorithms like Deflate to find repeating patterns within the file. It replaces long sequences of data with shorter "pointers," ensuring that when you unzip it, the original file is reconstructed exactly with no loss of quality. Fallen Single zip
You can add a password to a single zipped file, providing a layer of protection that the original standalone document might not have. Key Benefits What a ZIP File Is and How They Work - Dropbox.com Every ZIP file starts with the initials "PK"