I did notice that corruption can cause zips to break. Would zipping zips potentially corrupt files? You will probably not get any further compression for those files though unless you're using a higher level of compression. Zipping a zip might confuse AV software.
There are zips, which contain themselves as a new zip of themselves, which leads to an endless recursion if your AV software tries to inspect a zip in a zip, and to avoid such an recursion, the AV software might make a false alarm. Tools which search in zips like zgrep will not inspect zips in zips. But if you are aware of it, this might not be such a problem. So deflating internal zips before compressing the whole thing might lead to smaller results, but more importantly, it leads to better usable results.
You can do that, you shouldn't see any problem but compressing a compressed folder, you won't gain a lot of compression. That's it I recently had a project that dealt with tar files. The resulting file contains all of the files but they are not compressed.
In my opion tar files are a excelant way to archive zip files. So to make a multiple-file. But there are no merits to compressing a pre-compressed file. So it makes no sense to make for example a. Sign up to join this community. The best answers are voted up and rise to the top.
Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. Can Double Zipping Cause Problems? Ask Question. Asked 9 years, 8 months ago. Click here to learn more. A leading-edge research firm focused on digital transformation. Good Subscriber Account active since Shortcuts.
Account icon An icon in the shape of a person's head and shoulders. It often indicates a user profile. Log out. Smart Home. Social Media. More Button Icon Circle with three vertical dots. It indicates a way to see more nav menu items inside the site menu by triggering the side menu to open and close. Ron Lyons, Jr. When you "zip" a file, you'll compress its data and reduce how much space it takes up on your computer or phone.
Nearly all devices have built-in tools that let you zip and later unzip files. Visit Insider's Tech Reference library for more stories.
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This is very useful when disk space is limited or when people download files. Since multiple files can be stored in a zipped file, a single file can be downloaded then unzipped to easily download many files at once.
You can think of a zipped file as a set of books on a shelf :. The set of books is arranged so that they take a very small amount of space, but you can't use or read them while arranged in this compressed manner. In order to work with zipped files, they must be unzipped or extracted first. Windows has a built in program called Windows Compressed Folders which can do this for you. If you follow the instructions below for Windows Compressed Folders, but a different program opens, you can still follow the instructions listed, and it should generally still work.
Other software programs exist for zipping and unzipping files. Both of these allow you to unzip and zip with two clicks: Here, I have right-clicked on the zipped file and selected "Extract to here. Windows generally opens a wizard to ask where you want the files extracted. The location of the "extract files" tool varies depending on how Windows Explorer is set up and what version of Windows you are using. As above, other programs exist to zip files with two clicks:.
Synonyms Zipped file Compressed file Zipped folder Compressed folder Zipped archive Zipped files known by many names, see the table to the right, but in this document called "zipped files" are one or more files on a computer disk that have been combined into a single file in a space-efficient manner to reduce their total file size. You can think of a zipped file as a set of books on a shelf : Photo Credit: Flickr user callumscott2.
This tutorial assumes you can see file extensions, which unfortunately is not the default for Windows installations.
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