File compression is a process that reduces the size of a file by removing redundant data. This can be helpful for saving storage space or making files easier to transfer over the internet. Once a file has been compressed, it is called a “zipped file.”

Compressed file zipped

Unzipping a file is the process of extracting the original files from the compressed archive. This is usually done using a special software program called a “unzip tool.” Once the file has been unzipped, it can be used just like any other file.

Compressed file unzipped