Vallen Zipper 

Vallen Zipper is an excellent tool for managing ZIP archives. It is easy to use, and provides a wide range of features for creating, extracting, and managing ZIP archives. The program is also very reliable, and provides a thorough test to evaluate the integrity of the files. Highly recommended for anyone needing to manage ZIP archives.

Vallen Zipper is a free utility that allows you to open, generate, and extract compressed zip files with ease, supporting both ZIP and ZIP64 file formats.

The program is easy-to-use, to create a zip file you first need to use the "New Archive" option from the "File" menu or hit the "New" button located on the toolbar. After you have chosen the zip file's path and name, you can add files. You can use the "Add" option from the "Actions" menu, use the "Add" button on the toolbar, or directly drag and drop the files from the Explorer to the Vallen Zipper's main window. The files added are listed on the main window, with data such as their name, date of modification, size, the compression ratio, and the packed size. The compression ratio will depend upon the file type. To assure that the compressed file doesn't have problems, you can test the file integrity. You can add more files later by opening the zipped file again.

To extract files from a zipped file you first need to open the zip file and use the Extract option. You will be asked for the path and whether you want to extract all the files or the selected files, and also if you want to restore folders and overwrite files.

You will also find options to split and convert a zipped file.