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In this guide we will show you how to compress a file or folder into a .zip file using 7-zip. This is recommended before transferring a file over the internet, so that it is not corrupted in-transit.

You must have 7-zip installed before attempting to follow this guide. 7-Zip is a free open-source software; download 7-zip here.

How to Compress a File

  1. Open the 7-Zip File Manager.
  2. Navigate to the file you want to compress, and click it, then click the Add button.
    adding a file to be compressed in 7-zip
  3. The Add to Archive window will pop up, make sure the Archive format is set to zip, and click the OK button to proceed.
    compressing a folder into a zip file in 7-zip
    The file will be compressed into a zip file, that will be located in the same location as the original file.
    view of the compressed and uncompressed file on desktop

Congratulations, now you know how to compress a file into a .zip format using 7-Zip!

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n/a Points
2014-07-24 10:35 am
After the simple explanation, if you added more detail of what each feature does and how it affects the speed of your Zip operation, then it would greatly help beginners.
Staff
16,896 Points
2014-08-01 9:36 am
Hello Anthony,

Thank you for your helpful suggestion. I will hopefully write more detailed guides on using 7-Zip.

If you have any further questions, feel free to post them below.
Thank you,

-John-Paul
n/a Points
2014-07-30 11:50 am
Very helpful - first time I've used 7zip and this was just what I needed.
n/a Points
2014-08-17 3:24 pm

I follow the steps in the above helf file, and this creates  a .zip file as you say.HOWEVER, I want a compressed file, not just a zipped file - the .zip file i create using the above method is exactly the same size as the original, which for me defeats the purpose

Staff
16,896 Points
2014-08-18 12:40 pm
Hello ConfusedUK,

Thank you for contacting us regarding File Compression, I understand your frustration.

The amount of compression can be increased, but also depends on the files you are zipping.

Increase the Compression Level in 7-Zip:

  1. In Step 3 of the above guide, click the box next to Compression level, and choose Ultra.

Reasons a Compressed file is the same size:

Some file formats cannot be further compressed. For example jpeg file are already compressed and will not zip much smaller. In this case you can optimize the images by size, meta tags, etc. Which reduces the file sizes.


If you have any further questions, feel free to post them below.
Thank you,

-John-Paul
n/a Points
2014-10-12 1:46 am
Hello dear friend how are u hope well there, Brother i have a request with u i have 7-zip latest version but i want to compress a folder containing all my files and i want to compress it as small as possible could u please suggest me how to make it maximum small as possible using 7-zip ................................................ send me a small message if possible sir how to use it for making file smallest maximum by 7-zip software Thanks
Staff
28,219 Points
2014-10-13 8:03 am
Hello,

The amount of compression will vary depending on the file and its type. For example, text files (htmp. php,etc) can usually compress somewhat. Some files such as image and pdf files do not compress much at all. As for the types of compression available in 7-zip, I tested a txt file with each type. The top 4 compression formats, starting from the smallest, are .xz, .7z, .gz, and .zip. The difference between each was very small, so all formats will be fine.

Kindest Regards,
Scott M
n/a Points
2014-10-30 7:15 pm
This article is complete and it's clearer than the crow of a rooster.
n/a Points
2014-11-17 1:44 pm

Hey Dear

I have downloaded the 7 zip folder but it seems i cant get to the add botton. I am using windows 7 with 64 bit operating system but it just cant work! When you open the folder, only you see as icons are the following: organize, include in library, share with etc.

I will appreciate if you can guide me through the process!!!! I can actually see the folder /files i want to zip in the 7 zip but i cant go further in adding or do anythin else. Pls help. Its urgent

Staff
16,896 Points
2014-11-17 3:32 pm
Hello Bangso,

Thank you for your question. When you first open 7zip, you should see the button on the top left. If it is not there, you may have a different version, or it may not have installed successfully.

It may be easier for you to Zip the file using the built-in tool in Windows 7.

Thank you,
John-Paul
n/a Points
2015-01-29 7:37 pm

Hi bro ... i m admin of a site for software and games and any others applications etc and i need to uploads very large files in my site but you know large files take many tim for uploding .. so please tell me how to compres softwares or games large files into smal size and plz also tell me how we can divided these files into some parts i see many sites they upload some parts of one software and when we download all parts save these parts same drictry (folder) user extrect only one part and install whole software... please tell me how to use these tow methods plz plz plz reply me soon thanks :)

Staff
28,219 Points
2015-02-02 10:41 am
Hello Sharjeel,

This article does not cover splitting up large files. We do not yet have a guide for that, but I did find a tutorial for you that goes over how to do this. Check out How to split large files with 7zip and see if that helps you. We have not tested the guide, nor do we endorse the site, it was just something I found when searching the web.

Kindest Regards,
Scott M

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