Compression and archive format that stores one or more files into a single file, usually with a .zip file extension.

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14 views

Missing “Send to compressed folder” option. Anyway to restore?

Prior to Windows 10, there was a "Send to compressed folder" in the File Explorer. Is this really no longer there? Any secret switch to turn it back on? Not a fan of installing 3rd party hacky ...
9
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5answers
6k views

How can I control the order of files in a ZIP archive?

There are times when it is necessary for the files in a ZIP archive to be in a specific order (for example, I'm currently creating EPUBs, which require that the first entry in the ZIP be the mimetype ...
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1answer
10 views

7zip : Set archive's LastWriteTime as old as the content

On windows, with 7za.exe v9.38, how can I set the archive's LastWriteTime (or CreationTime) same as the content? For example : I have a "toto.txt" file, created and last written on 01/01/15. 7za.exe ...
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0answers
9 views

How can I split a series of concatenated zip files back out into individual files?

I have a series of complete, standalone zip files which have been concatenated together through a serial device; for testing purposes, one might think of cat 1.zip 2.zip 3.zip >all.zip. Now, given ...
2
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0answers
25 views

Zipping a text file with sha256 hashes seems too efficient

I have an ASCII-encoded text file where each line has the following structure: XYplorer nn.nn.nnnn [yyyy-mm-dd hh.mm.ss] [S256 S256].zip ↑↑ ↑↑ ↑↑↑↑ ↑↑↑↑ ↑↑ ↑↑ ↑↑ ↑↑ ↑↑ ↑64× ↑64× so a ...
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0answers
17 views

Big encrypted zip and bad sector

I've got one big (11.6 GB) file in encrypted zip. But I've lost 4096 bytes (one sector) near 1 GB from begin file. I copy it by "dd ... conv=sync,noerror". I can decrypt 916 MB of file but then it ...
0
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2answers
250 views

how to open a zipped folder shown as zip.xml file?

I zipped some folders using winzip on my old laptop and copied to an external drive. The folders contain all types of files including xls, doc, ppt, etc. Now I am trying to open the zipped folders in ...
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1answer
19 views

Unzipping Taking A Long Time (about 200-800kbs)

On Windows 8. Unzipping is unbearably slow, as is downloading for that matter. Just unzipped a 700mb .zip file and it took about 19 minutes at anywhere between 200-800kbs. This keeps happening. I ...
0
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1answer
27 views

7zip: compress and copy to destination folder

I am trying to do the following: command line compress a file from C:\TestFolder\file.txt (source location) and on the same command or bat file put that compressed file in (a destination folder) ...
66
votes
3answers
3k views

Windows File is ludicrously huge and I cannot unzip it

I use an online file backup service (Backblaze) and recently got a new computer. Several files on my old computer were too large to move via my usb drive so I decided to download them from my backup ...
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0answers
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6answers
23k views

How to combine / merge zip files?

For the last several months I have copied several data folders to zip files at weekly intervals. Now I'd like to combine those zip files into one zip file, because most of the contents of the ...
84
votes
2answers
40k views

What is __MACOSX folder?

What are these __MACOSX folders I keep seeing in zip files made by people on OSX? Some take as much as 30% of the file. What program are producing these __MACOSX folder and how can mac users avoid ...
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votes
0answers
68 views

why is copying many files slower than using a zip archive

The question is often asked on this forum (e.g. here and here) why windows is slow with copying many files over the network. The answers all say that it has to do with the time it takes to create new ...
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0answers
26 views

Search text in zipped files and move them to other folder

Friends, On my Mac, I have 100s of zip files in a directory named Test. Let's assume I have files a.zip,b.zip,c.zip....... Now I want to grep all files for a text "searchText" and move the matching ...
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0answers
20 views

view zip file content in tree command style

I am seeing the zip file content using unzip -l files.zip | less but it outputs in ls style , is it possible to to display output in tree command style
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0answers
27 views

Possible bug in 7zip - empty folders extract as empty files

I have a directory structure as follows: Main | |--empty_folder | |--folder | |--example.txt I'm zipping it using the .NET ZipFile.CreateFromDirectory method (but I doubt this has anything to ...
2
votes
3answers
924 views

Create multiple zip files that are not dependent on each other?

I want to compress a folder into multiple zip files of 50MB each but don't want them to be dependent on each other. When I use Winzip and use the split feature it creates one zip file and the others ...
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1answer
34 views

how to achieve same compression in linux and windows

I have a example.jar file. I'm trying update a class file in the jar. when I'm packing the class file using jar or zip utility(command line-linux) I tried : jar uf my MyJarFile.jar ...
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1answer
4k views

Unix zip: zip multiple folders in to one zip file without creating a top containing folder

I have a folder like this: -resources --graphics --sounds I want to zip graphics and sounds folder into a .zip file named resources.zip, which I will use zip -r resources.zip graphics/ sounds/ ...
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0answers
27 views

Strange model of zip split files

I have some zip splited files, with random sizes, and named as: file 1.zip file 2.zip file 3.zip.... I try unzip this files with the programs winzip, winrar and 7-zip, but when i click in the first ...
19
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2answers
13k views

Is zip's encryption really bad?

The standard advice for many years regarding compression and encryption has been that the encryption strength of zip is bad. Is this really the case in this day and age? I read this article about ...
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1answer
24 views

Unzipping from Flash Drive and Drive Wear

If I have a zip file on a thumb flash drive and I want to unzip it to hard disk, is there any write activity on the flash drive, or is it reading only? Because if there is any writing, I would want ...
17
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3answers
54k views

What are the best options to use when compressing files using 7 Zip?

I often have to gather log files and upload them to a central server (Owned by another company). The central server has a size limit of the file, so I am trying to create the smallest file possible ...
2
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2answers
2k views

How to unzip zip archives that have more than 260 symbols in their name?

I have a big zip file (approximately 650 MB) that I want to unzip. I already shortened the name of the zip file to just 1 letter and stored it directly on the C: folder. So I can´t shorten the path ...
0
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1answer
35 views

zip extractor reading archives from stdin

As follows from UNZIP(1L) man page Archives read from standard input are not yet supported Are there another CLI programs running under Linux/cygwin which can extract from zip archives reading ...
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3answers
8k views

Unzipping file whilst getting correct permissions?

I unzipped a file on my server using: unzip filename However this seems to have caused all the files having owner/group permissions of 0 0. The files I uploaded were a PHP software script, so I'm ...
7
votes
1answer
610 views

Fix encoding of German umlauts in directories and filenames (ü = u╠ê and so on)

I have many zip-files where there are encoding errors for the German umlauts (äüöÄÜÖß). They show up in both the filename.zip as well as in the included directories and files like this: Fünf = ...
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2answers
507 views

Winrar command line zip folder

I am trying to use WinRAR command line to zip folder: "c:\Program Files\WinRAR\WinRAR.exe" a -afzip "e:\output.zip" "e:\foldertozip\" If the foldertozip contains file, the command line works. But ...
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1answer
58 views

Compress large CSV FIle? (500MB)

I have a CSV-File which is 500MB of size. I am searching for a way to compress is to it smallest possible size. I actually received the file back then in a ZIP-Folder which was only about 50MB of ...
2
votes
1answer
50 views

Why does 7-Zip's compression speed lower over time?

I'm busy backing up my local server files, which amounts to just under 4GB of data in ~295000 files. I selected 7z as the format, and set the level to Store. The process started pretty quickly, but ...
0
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1answer
50 views

How do I zip files with the same name?

I'm on a Mac OS X 10.10.4 I need this: Detecting files with the same name, but different extension. (aaa.ai, aaa.eps, aaa.pdf and bbb.ai, bbb,eps, bbb.pdf and so on) Compressing those with the same ...
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0answers
17 views

Create archive with compression method 14

I received an archive which has the following header structure (example structure): 50 4b 03 04 14 00 00 00 0e 00 55 7b ae 46 17 7e db 6d 0b 1f 00 00 f6 06 02 00 16 00 00 00 //filename 50 4b 03 04 ...
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0answers
98 views

VBS unzipping - object required: 'objshell.NameSpace(…)'

I know very little about bash or vbs. I am trying to make a script that will automatically unzip a zip called 'dungeon.zip', which contains a little game I programmed. I want to unzip it to a folder ...
0
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1answer
36 views

extract all .jpg files from all .zip and .rar files in a directory and its subdirectories

I think I've prettu much said it all. I want to create a .bat that lets me extract all files with a certain extrnsion from all .rar and .zip files in a folder, all together into another folder. ...
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1answer
14 views

Can I use the “Open with…” context menu item within zip folders?

Normally in windows explorer, there is an "Open with..." item in the context menu, that allows choosing a non-default program to open the file with. When within a zip folder, this menu item is ...
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0answers
26 views

Display HTML file that's in a zip directory on a server in a browser?

I'm curious if this is possible. I'm trying this on a MacBook running Yosemite with localhost (AMP). In my localhost within a browser, is it possible to get a response for the contents of a .zip'd ...
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2answers
76 views

bash: find and zip all subfolders of a folder

how would one find all subfolders of a folder and zip them separately ? folder structure ./folder -subfolder_1 -subfolder_2 -subfolder_3 expected result: ./folder ...
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2answers
326 views

Using command-line to pack files individually into .zip format while keeping directory structure

I'm trying to create a cmd script that recursively traverses a directory and zip each file individually. This I have done here: for /R %%b IN (*.*) do ( "C:\Program Files\WinRAR\WinRAR.exe" a ...
0
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1answer
42 views

.zip corrupted on Mac

I've got a .zip file of approx. 20GB. (20,497,570,063 bytes) I am trying to uncompress it but both Archive Utility and Terminal are failing to do so. Archive Utility is giving error 2 (no such file ...
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votes
1answer
29 views

Need help extracting Windows 7 Enterprise aero.theme file

Ok SuperUsers, I need help extracting the native aero.theme file. (Not the downloaded themepacks). This is the one that ships natively with Windows 7 Enterprise. Specifically I am looking to get the ...
0
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2answers
86 views

Automating a folder backup task (zip, move, then rename according to naming convention)

I am attempting to automate the backup of a folder on a Windows 2003 R2 server (currently a manual process). There are three components to this task: 1) Generate a zip file of the following folder ...
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0answers
74 views

How to recursively extract a zip bomb?

I downloaded the famous 42.zip zip bomb and was able to extract it in my computer without my system crashing. Then I realized that in order to see the effects of the bomb, I will need to recursively ...
18
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8answers
20k views

How to create a zip file compatible with Windows under Linux

I need to make a zip file available to all my Windows users visitors, so I naively produced a zip file with the Unix zip command (let's call it madeinlinux.zip). It opens successfully with WinRar or ...
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0answers
43 views

7zip only asks me for a password once when I open an encrypted file

I archived some files on my laptop and encrypted them using 7zip and the first time I tried to open a file, it asks for the password, but after that it never asks for a password... is there a way to ...
0
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0answers
60 views

How to modify Word document package object (oleObject) metadata in order to fix path leaks?

I created a docx Word document and inserted a zip archive as icon using Word 2007 on Windows XP operating system, then opened that document using Word 2007 on Windows 7 operating system (on other ...
2
votes
2answers
60 views

How to compress multiple files with similar names?

So I've got some 20 000 files that I want to compress and group by following logic: compress every file that have identical characters up to ( also include files that have no ( So the files are ...
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1answer
35 views

Can I make windows open renamed zip files in explorer?

I have some files on my system (extension .sublime-package). These files are nothing but a .zip with a different file extension. I can currently browse them by renaming the file, then double clicking ...
0
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1answer
1k views

Combine unzipped xml files back into a working XLSX file

I can rename an Excel file extension from .XLSX to .zip and extract out the xml files. How do I combine individual Excel xml files back into a single XLSX file? I tried zipping up the folder ...
0
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1answer
44 views

How to zip an archive while keeping some symlinks but not others? (OS X)

I'm using the zip command line tool on OS X to compress an Xcode project folder. Included in that folder is a .framework for OS X which includes symlinks like xx.framework/Versions/Current which ...