For example, I had the following 60MB.zip file in my case: Here's the Split command in action: So as you can see, using the -b option, I asked the Split command to break the large.zip file into equal pieces of 20MB each, providing the complete name of the compressed file as well as the prefix text.

Split Zip Into Multiple Files Mac

• Split files online. In Files Keywords Thanks to. Keywords: splits joins splitting joining files hjsplit hacha split splitter compress compression backup zip join joiner transport store binary data. Splits any file into smaller files (pieces), later you can join the generated pieces to reconstruct the original file using the tool Join files.
• Split Zip files are kind of strange depending on how they are created, when using floppy disks, the filename was the same for all parts and the last disk was required to extract the files.
• To unzip the your split zipped library with the 7-Zip Utility, you can right-click on the first file “.zip.001”, select the 7-Zip menu, and then choose one of the “extract” options. For mac: Recommended Tool: The Unarchiver or Keka What is it?: A free software available from the App Store for Mac OSX computers as well iOS mobile devices.

Suppose that you want to attach a file on an e-mail message but the file is too large for sending through your mail server. Or you want to copy a file to USB drive but the file size is exceed the limit of your USB drive can hold.

To solve these problems, you can split the large file into smaller files using Zip software. So, you can attach these smaller files to e-mail messages or copy to your USB drive as you want. To get the original file back, you can open these smaller files using any Zip software and you’ll get the original file.

In this post, I’ll show how to split a large file into smaller files using 7-Zip. 7-Zip is an open source software which can compressed/uncompressed file in various formats. Other Zip softwares such as WinZip, WinRar, etc. can do this, too. The steps are similar to 7-Zip.

Step-by-step split large file using 7-Zip

1. Download and install 7-Zip on the PC. You can download it from http://www.7-zip.org.
   
2. In this example, I’ll split Book.pdf (~30 MB.) into smaller Zip files which the file size must not exceed 10 MB.
   
3. Right-click on the file -> Select 7-Zip ->Add to archive.
   
4. On Add to Archive,
   • Name the archive file.
   • Select archive format.
   • Define file size limit you want. In this example, I’ll limit to 10MB.
   • Click OK.
5. The program is compressing the file.
   
6. When finishes, you’ll see that a large file is split into new smaller Zip files which size are limit as you defined. In this example, I get 3 file: Book.zip.001, Book.zip.002 and Book.zip.003.
   
7. To get the original file from these Zip files, right-click one of these Zip files -> select 7-Zip -> click Open archive.
   Note: You can open these Zip files with other Zip software since they are .zip file now.
   
8. The 7-Zip program will be opened and you’ll see the original file.
   

7 Zip is a free and open-source file compression tool. 7 Zip File uses .7z as the file extension and has similar to other archive formats, such as ZIP, RAR, and ISO. The biggest standout feature of a 7 Zip file is that it uses a higher compression ratio, along with AES-256 encryption. This means 7Zip creates smaller and safer archives compared to other archiving applications.

In this article, you will definitely learn how to make use of 7Zip like a pro. You will get to know how to compress multiple folders containing multiple sub-folders that can be packed at once separately. Apart from that, you will be able to archive and unarchive multiple files using 7Zip.

What can 7Zip do that Winzip cannot:

• 7Zip is free to use whereas Winzip is not.
• Winzip can create archives only in .zip format. On the other side, 7Zip can create compressed files in 7z, bzip2, gzip, tar, zip, etc.
• 7Zip compresses better than Winzip though the time taken is slightly more. As 7Zip uses a high compression ratio in 7z format with LZMA and LZMA2 compression.
• 7Zip frees up more space in your hard drive as the compression rate is quite high.
• The best part of 7Zip is, it supports up to 16 Billion GB file sizes! Winzip does not support huge files.
• According to reviews and statistics, the 7Z format is 30-70% efficient than the ZIP format.

How to Use 7Zip to Create Multiple Compressed Folders at once?

The below-mentioned method is applicable for Windows 10,8,7.

How To Zip Multiple Files On Mac

To be able to create multiple compressed folders using 7 Zip go through the following steps:

• Install 7-Zip on your PC.
• Create a folder where all the Folders or Multiple Folders that you want to compress at once are present.
• Go to Notepad Application.
• Enter the following command in Notepad.

for /d %%X in (*) do 'c:Program Files7-Zip7z.exe' a '%%X.7z' '%%X'

This command will pack the files in a .7z extension. But if you want to pack the files into Zip format then use '%%X.zip' instead of '%%X.7z'.

• Then click on File > Save. Save the file with the .bat extension. So you are saving a batch file that consists of a command to execute for the PC through Windows Command Prompt.

• Copy the BAT file and Paste it in the location where the multiple Folders which need to be compressed are present.
• Double click on the .bat File and soon Command Prompt Window will appear and run the program automatically. Then 7-Zp will compress all the folders.
• Once the process is done, you will see the 7Z Compressed Folders located in the same directory or location. To check Right-click on any Compressed folder and Select 7Zip > Test Archive/ Open Archive.
• You can check the contents of the Archived Folders.

Extra Info: If your compressed 7 Zip or ZIP file is corrupt and you are unable to extract them, then quickly repair them by using Remo Repair ZIP. Additionally, this tool recovers all types of files contained in the compressed format including audio, video, documents, pictures, etc.

How do I compress multiple files in 7Zip?

To be able to create multiple compressed folders using 7 Zip go through the following steps:

1. First and foremost install 7Zip on your system. By default, it will be downloaded in 'C:Program Files7-zip7z.exe.'
2. Open the 7 Zip application and select the files you want to compress and click on Add.
3. Then you can manage the settings as required in the Add to Archive window.

• Archive — will have the name of your archive file.
• Archive format — choose the file’s format. For the best compression rate, choose 7z
• Compression level — It will let you decide the compression level which is directly proportional to compression time. The range provided to you is from Store (fastest compression) to Ultra (slowest compression time with the most space saved).
• Compression method — select the LZMA option(Lossless data compression) as it is the best method for handling the compression process.
• Split to volumes, bytes — lets you split the large file into small archive files. (For example, if you have a 500 MB file you can split it into five 100 Mb compressed files)
• Encryption — allows you to secure the compressed file with a password.

Mac Split Zip Into Multiple Files Into 1

4. Then you can click on OK to create a 7Z file.

How to Extract Multiple ZIP Folders at Once Using 7-Zip?

How To Split A Zip File Into Parts Mac

To extract multiple files from a Compressed File through 7Zip follow the steps below:

Mac Split Zip Into Multiple Files Quickly

1. Right-click on the archive file.
2. Select 7Zip > Extract Here.
3. The files will be extracted in the same location as the original archive folder.

Sometimes, when you download the archived file from an unknown or unreliable source you can encounter a virus attack. Even due to some downloading error, there comes a possibility where the 7Zip file might get corrupted and you are unable to open it. In such scenarios, there is no need to panic because there is a reliableutility to fix corrupt 7Zip files.