Decompressing a zip file means extracting the files inside it back to their original form
A zip file is a container that holds one or more files in a compressed state. When you decompress it — also called extracting or unzipping — you're telling your computer to unpack those files and restore them to usable form. The process takes about 30 seconds on most computers and requires no special software on Windows, Mac, or Linux.
The steps differ slightly depending on your operating system, but the basic idea is the same: find the zip file, open it with your system's built-in tool, and choose where to put the extracted files. After that, you can use the files normally.
Key Takeaways
- Windows, Mac, and Linux all have built-in tools to decompress zip files without installing anything extra.
- Right-clicking the zip file and selecting "Extract All" (Windows) or "Open" (Mac) is the fastest method on most computers.
- The extracted files appear in a new folder in the same location as the original zip file unless you choose a different destination.
- If decompression fails or seems stuck, check that the zip file is not corrupted and that you have enough free disk space.
How to decompress a zip file on Windows
On Windows 10 and Windows 11, the File Explorer handles zip files without any extra software. Locate the zip file on your computer, right-click it, and select Extract All. A window will open asking where you want the files to go. By default, Windows creates a new folder with the same name as the zip file in the same location. You can change this by clicking Browse and picking a different folder, or just click Extract to accept the default location.
Windows will then decompress the files. Depending on the size of the zip file, this can take anywhere from a few seconds to a few minutes. Once it finishes, a new folder appears containing all the extracted files. You can now open and use them like any other files on your computer.
If you do not see Extract All when you right-click, your version of Windows may be older. In that case, download 7-Zip (a free program) or WinRAR, right-click the zip file again, and look for an option like 7-Zip > Extract Here or Extract Files.
How to decompress a zip file on Mac
On Mac, the Archive Utility handles zip files automatically. Simply double-click the zip file in Finder, and your Mac will decompress it immediately. The extracted files appear in the same folder as the zip file, usually within a few seconds. You do not need to do anything else — the process happens in the background.
If double-clicking does not work, right-click the zip file, select Open With, and choose Archive Utility. If you have a third-party tool like The Unarchiver installed, you can also select that from the menu.
On newer Macs with Apple Silicon chips, decompression is very fast. On older Intel-based Macs, larger zip files may take longer. Either way, you will see the extracted folder appear in Finder when the process is complete.
How to decompress a zip file on Linux
Linux distributions include command-line tools for decompressing zip files. If you prefer a graphical interface, most Linux desktops (Ubuntu, Fedora, Linux Mint) come with a file manager that handles zip files. Right-click the zip file in your file manager and select Extract Here or Extract To. The extracted files will appear in a new folder in the same location.
If you are comfortable using the terminal, you can also decompress a zip file by opening a terminal window, navigating to the folder containing the zip file, and typing unzip filename.zip (replace "filename" with the actual name of your zip file). Press Enter, and the files will extract to the current directory.
If the unzip command is not found, your Linux system may not have the unzip package installed. You can install it using your package manager — for Ubuntu or Debian, type sudo apt install unzip and press Enter.
What to do if the zip file will not decompress
If you try to decompress a zip file and nothing happens, or you see an error message, the file may be corrupted or incomplete. First, check that the zip file downloaded completely. If you downloaded it from the internet, try downloading it again — sometimes downloads are interrupted and the file ends up broken.
Next, make sure you have enough free space on your hard drive. If the zip file is 5 GB and you only have 2 GB free, decompression will fail. Check your available disk space and delete files you no longer need if necessary.
If the file still will not decompress, try opening it with a different tool. On Windows, download 7-Zip or WinRAR and try again. On Mac, try The Unarchiver instead of Archive Utility. Sometimes one tool can recover a zip file that another tool cannot read.
Where the extracted files go
By default, extracted files appear in a new folder in the same location as the zip file. If the zip file is on your Desktop, the extracted folder will also be on your Desktop. If it is in your Downloads folder, the extracted folder goes there too.
You can move the extracted folder anywhere you want after decompression is complete. Simply drag it to a new location in your file manager, or cut and paste it. The original zip file remains unchanged — decompressing does not delete it, so you can keep it as a backup or delete it if you no longer need it.
Frequently Asked Questions
Do I need to install software to unzip a file?
No. Windows, Mac, and Linux all include built-in tools for decompressing zip files. You can unzip a file by right-clicking it or double-clicking it without installing anything. Third-party tools like 7-Zip or WinRAR are optional and only needed if your system's built-in tool does not work.
What happens to the original zip file after I decompress it?
The original zip file stays on your computer. Decompressing does not delete it. You can keep the zip file as a backup, send it to someone else, or delete it if you no longer need it. The extracted files are separate copies.
Can I decompress part of a zip file instead of the whole thing?
Yes. On Windows, open the zip file in File Explorer (double-click it), select only the files you want, and drag them to a folder. On Mac, you can do the same by opening the zip file and dragging individual files out. On Linux, use the file manager to select specific files before extracting.
Why is my zip file so much smaller than the extracted files?
Compression reduces file size by removing redundant data. When you decompress, the files return to their original size. A folder of photos or documents might compress to 30 percent of its original size, so a 300 MB zip file could contain 1 GB of files.
What if the zip file is password-protected?
Your system will ask you to enter the password before decompressing. Type the password and click OK. If you do not know the password, you cannot decompress the file — there is no way to bypass it without the correct password.