ZIP file format description

ZIP file format

We made this page to help you understand how to work with ZIP files. Here, you can find info on software that can handle these files. It includes simple programs for opening and converting them.

Learn about the ZIP file and its functions here!

We also explain how to convert them into other types. It's simple and hassle-free. For opening or changing ZIP files, this page offers all the tools you need.

#1 ZIP Archive

The ZIP file is categorized under Archive. It is associated with WinZIP, serving as a ZIP Archive. The ZIP file format is a popular data compression and archival format. A ZIP file contains one or more files that have been compressed or stored. Visit the website of WinZIP for a detailed description of the ZIP format.

Category:Archive files
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ZIP Archive related extensions

  • paq Hewlett-Packard Software Restore Archive
  • pzip WinZip Mac Archive
  • tz Compressed Tape Archive
  • wjf WinZip Job File

#2 Oolite Expansion Pack

The ZIP file is categorized under Game Data. It is associated with Oolite, serving as an Oolite Expansion Pack. Oolite is a free and open source 3D space trading and combat simulator in the spirit of Elite. Visit the website of Oolite for a detailed description of the ZIP format.

Category:Game Data files
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Oolite Expansion Pack related extensions

  • pigg City of Heroes Data
  • xtl Vietcong Data
  • grp Duke Nukem 3D Archive
  • vromfs War Thunder Game Data

Did someone accidentally misspell the ZIP filename?

The ZIP filename extension may be misspelled. We compiled a list of similar file extensions to help you find errors.

Filename extensions similar to ZIP:

Windows can't open your ZIP file?

When you try to open a file by double-clicking it, Windows looks at the file's name to figure out what to do. If Windows doesn't know the file type, it'll ask you to choose an app to open this ZIP file.

To set the ZIP file association in Windows 11, you can follow these steps

  1. Open the Settings app by clicking on the Start menu and selecting the gear icon.
  2. In the Settings app, click on System and then select Apps from the left-hand side menu.
  3. Scroll down and click on the Default apps option.
  4. In the Default apps section, you will find various categories. They include Email, Web browser, and Music player.
  5. Locate the category that matches the file type you want to associate. For example, choose Photos for image files, or Video player for video files.
  6. Click on the current default app listed under the category. A list of available apps will appear.
  7. Choose the app you want to set as the default for that file type. If the app you want is not listed, click on More apps to see more options. Or, click on Look for an app in the Microsoft Store to search for apps.
  8. After selecting the app, it will become the default choice for opening files of that type.

It's worth mentioning that you don't always need to set ZIP file association. Many apps can open files. They don't need a specific file association to be set.

Handle ZIP files with care

Exercise caution when handling ZIP files from unknown sources. Files from certain sources can threaten your computer's security. They might contain malware, viruses, or harmful software. To minimize risks, avoid downloading or opening unfamiliar ZIP files. Use trusted antivirus software to scan files from unknown sources before opening.

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