uncompresses
Restores packed files
Uncompresses is the third-person singular form of uncompress, meaning to restore compressed data to its original size and format.
In computing, files are compressed to save storage space or speed transfer; uncompressing reverses the process: The software automatically uncompresses the archive when you double-click it.
Outside technical contexts, the word is rare.
extracts
Removes or concentrated essences
restores · decodes · expands · archive · file · deflate · unarchive · extraction · unpacking · restoration