Why zip a file or folder at all?
A ZIP file bundles one or more files or an entire folder into a single, smaller archive. This is useful for two main reasons: it shrinks the total file size for easier sharing over email or chat apps, and it packages multiple files into one attachment instead of sending them one by one. Compressing does not affect the quality of most already-compressed formats like photos or video, since those are typically stored close to their smallest size already, but it can meaningfully shrink documents, spreadsheets, and folders full of many small files.
How do I zip and unzip a file on Windows?
To zip (compress) a file or folder:
- Find the file or folder in File Explorer.
- Right-click it. On current versions of Windows 11, choose Compress to > ZIP file. On other versions, hover over Send to and choose Compressed (zipped) folder.
- Windows creates a new .zip file with the same name, right next to the original.
- To zip several items together, select them all first (hold Ctrl while clicking each one), then right-click and compress as above.
To unzip (extract) a ZIP file:
- Right-click the .zip file in File Explorer.
- Choose Extract All….
- Confirm or change the destination folder in the dialog that appears.
- Click Extract. Windows unpacks the contents into that folder, leaving the original .zip file in place.
Both features are built into Windows 11 and Windows 10 through File Explorer, according to Microsoft's own support documentation, so no separate compression app is required for standard ZIP files.
How do I zip and unzip a file on Mac?
To compress: in Finder, hold Control and click the file or folder (or right-click it), then choose Compress from the menu. If you compress a single item, the resulting archive takes that item's name with a .zip extension added. If you select several items first and compress them together, Mac names the archive Archive.zip instead.
To unzip: just double-click the .zip file. macOS decompresses it automatically and places the extracted contents in the same folder as the .zip file, according to Apple's own support documentation. You can delete the original .zip afterward if you no longer need it, or keep both.
How do I zip and unzip a file on Android?
Android does not ship one single universal compress tool the way Windows and Mac do, but the free Files by Google app (pre-installed on many Android phones, or available on the Play Store) includes a built-in compress feature, and many phone manufacturers' own default file manager apps offer the same option.
To zip with Files by Google:
- Open the Files app and select the file(s) or folder you want to compress.
- Tap the three-dot More menu next to your selection.
- Tap Compress, then give the new .zip file a name (avoid spaces or extra periods in the name).
- The compressed file is saved in the same location as the original.
To unzip: open the Files app, tap the .zip file, and Android extracts its contents into a new folder in that same location. If your phone's file manager does not show a compress or extract option at all, the Files by Google app (from the same official Google Play listing as Gmail and Google Maps) is the most reliable free option, since it needs Android 8 or newer.
How do I zip and unzip a file on iPhone?
To compress a single item: in the Files app, press and hold the file or folder, then tap Compress from the menu that appears. A new .zip version appears next to the original, ready to share.
To compress multiple items: tap Select (or the three-dot menu, then Select), choose the files or folders you want, then tap Compress. Everything selected is bundled into one Archive.zip file.
To unzip: tap the .zip file in the Files app and it decompresses automatically, or press and hold it and choose Uncompress from the menu. Either way, a new folder with the extracted contents appears next to the original .zip file, according to Apple's official support documentation for the Files app.
People also ask
Do I need to install an app to zip or unzip files?
No. Windows, Mac, and the Files app on iPhone all handle it with built-in tools. On Android, the free Files by Google app or your phone's own file manager can do it.
What happens to the original file when I zip it?
Zipping creates a new, separate compressed copy. The original file or folder is left untouched next to it.
Can I unzip a file without deleting the ZIP afterward?
Yes. Extracting only adds a new, uncompressed copy of the contents. The original .zip file stays put unless you delete it yourself.
Why can't I open a ZIP file I received?
Usually there isn't enough free storage space for the extracted version, or the download didn't finish. Check your free space and confirm the download completed, then try again.