Many people use the ZIP format to send files online, so you'll be pleased to know that 7-Zip can normally compress ZIP archives more tightly than most other utilities. While Windows does include support for these archives, it's convenient to have a dedicated tool that handles every type of archive you might run into.

Naturally, that means you can also work with traditional ZIP files as well. By using 7-Zip, you can break these apart into their component files or assemble huge batches of images into your own books for use with an eReader that supports this format. Those who download archives from the web on a fairly regular basis may come across CBZ archives, which are comic books stored in the traditional DEFLATE format. That means you won't need to install a separate RAR expansion utility. You've probably seen quite a few archives stored in the RAR format, which 7-Zip should also be able to reassemble for you. If you haven't been able to open these, then installing the 7-Zip archiving utility is all you have to do to get access to all the information stored within. You might have noticed that an increasingly large percentage of archives available on download sites end with the.

The 7z format is named for the utility, which supports it flawlessly. While the name would suggest that it works with seven different types of archives, due to similarities between standards it might actually be able to do much more.

7-Zip is a file compression and archiving utility that supports a wide variety of formats.

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