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Lesson 3: Working with Zip Files
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What is a zip file?
A zip file is a way of grouping,or archiving, multiple files so they act like one file. For example, let's say you want to email a folder of Word documents to someone. You could attach each file individually, but it would take a long time—especially if there are a lot of documents. A better solution would be to put all of the files into a zip file, and then attach the zip file to your email.
Another advantage of zip files is that they are compressed, which means the total file size is smaller. If you're emailing a zip file to someone or posting it to the Web, it takes less time to upload—and your recipients will also be able to download it more quickly.
Some file formats, like MP3s and JPEG images, are already compressed. You can still zip these types of files, but the file size may not get much smaller.
Creating zip files
Whether you're using Windows or macOS, you don't need additional software to create and open zip files. That's because the basic zip file features are built into the operating system.
To create a zip file in Windows:
- Select the files you want to add to the zip file.Selecting files
- Right-click one of the files. A menu will appear.Right-clicking a file
- In the menu, click Send to and select Compressed (zipped) folder.Creating a zip file
- A zip file will appear. If you want, you can type a new name for the zip file.
In Windows, once you've created a zip file you can then add more files to it by dragging them onto the zip file's icon.
To create a zip file in macOS:
- Select the files you want to add to the zip file.
- Right-click one of the files. If right-clicking is not enabled, you can hold the Control key and then click. A menu will appear.
- In the menu, click Compress (the number will vary depending on how many files you have selected).
- A zip file will appear. By default, the file name will be Archive.zip.
- If you want, you can type a new name for the zip file.
In macOS, once you've created a zip file you cannot add more files to it. If you need to add files, you will need to create a new zip file that contains all of the files you want.
Adding a password to your zip file
Some people prefer to use zip file programs such as 7-Zip, PeaZip, and StuffIt. These programs have additional features, like password protection. If you add a password to your zip file, it's important to tell recipients what the password is so they can open it.
Opening zip files
To open a zip file in Windows:
Windows treats zip files just like folders. C40 studio fix powder. You can open a zip file, move files in and out of it, and open individual files just like you would if they were in a folder.
- Double-click the zip file.
- The zip file will open. You can now double-click any file to open it.
Because Windows makes it easy to work with zip files, there's generally no need to unzip them. However, if you would prefer to unzip them you can simply right-click the zip file's icon and select Extract All.
To open a zip file in macOS:
Opening a zip file in macOS is slightly different from Windows. Instead of opening the zip file directly, it will unzip the files and place them in a new folder. You can then open the folder to access individual files.
- Double-click the zip file.
- A folder will be created with the same name as the zip file. You can double-click the folder to open it.
- You can now double-click any file to open it.
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“I had a large sized PDF file that had important information regarding my professional work. Since the file was occupying more space on my hard disk, I thought of compressing it to ZIP format using WinZip tool and I triggered the compression process. But after completion of the process, I was unable to go through its contents. When I tried to unzip the file, error message popped up stating that ZIP file is larger than 4GB and cannot be unzipped. It is the only copy of that file as I don’t have any backup. What should I do now to decompress this .zip file which is more than 4GB? Please help”
How To Open Large Zip Files
ZIP is the well known compression format used for minimizing the size of large files so that they can be saved within small memory space on drive. Also, compressing a set of files in to a ZIP folder will ease the difficulty of individually downloading / transferring set of files over internet. Hence, most of the users prefer making use of WinZip, 7Zip, WinRAR applications to accomplish the task of compressing files. But, encoding very large files to ZIP file sometimes end up in disaster because, basic ZIP compressor tools limit to decode files with less than 4GB. Thus, ZIP archive larger than 4GB size becomes corrupt and errors out when users tries to unzip it.
Apart from large file size, here are few other reasons that result in corruption of ZIP folder:
- Improper compression process i.e. occurrence of errors while creating ZIP archive can result in ZIP file corruption
- Use of unsecured compression tools to zip / unzip important files on ones Windows computer can also damage the ZIP file severely
- Interruptions while downloading and extracting ZIP archives like system shutdown, power surge, termination of WinZip application, etc. can be possible reason for ZIP file corruption
- In addition, header corruption, virus infection, CRC errors, etc can all damage ZIP archive leading to its inaccessibility
When ZIP file gets corrupt due to oversize or due to above mentioned reasons, one may partially extract the ZIP file contents; but complete access to the folder will be denied. To experience problem free extraction of corrupt ZIP archive, repair the ZIP file more than 4GB using reliable ZIP repair utility. Eager to know which is the best tool to fix ZIP file that is over 4GB? Then read further.
Software to unzip files more than 4GB:
Accomplish the task of repairing ZIP file bigger than 4GB in file size by using Yodot Zip Repair tool that is widely suggested by many industry experts. Built with many advance techniques this Zip repair utility can skillfully fix irregularities associated with ZIP and ZIPX archive created on various versions of WinZip application. One can also fix password protected or error showing or damaged ZIP archives with the aid of this Zip file repair tool. By employing this application, one can securely overcome problems while unzipping corrupted and broken ZIP / ZIPX files without modifying the original file contents within few mouse clicks. This software runs compatibly on various computers working on Windows operating systems like Windows 8, 7, Vista, XP, 2003 and 2008.
Zip Large Files To Email
Procedure to mend Zip files larger than 4GB on Windows OS:
- Download Yodot ZIP Repair software on the system where ZIP file having more than 4GB size is residing
- Install and run the utility to start repair process
- Then, in the main screen select the ZIP file larger than 4Gb using browse option and click on ‘Repair’
- Next screen displays status of the ZIP file repair process
- On completion of process, fixed ZIP file contents can be viewed successfully
- By clicking next, proceed to save the repaired ZIP file to specified destination folder on the system
Send Large Zip File
Valuable Tips:
- Do not compress very large sized files in to a single ZIP folder that might get corrupt due to oversize
- Always make use of authenticated tools to create ZIP files / to unzip it
- Avoid interruptions while extracting / downloading ZIP folders