WinRAR - troubleshoot "the archive is either in unknown format or damaged"

By Laura

You extract a downloaded archive and you encounter the mistake that the archive is either in unknown format or damaged. Although you have fixed it in many ways, it still happens. This article will guide you the way to fix this mistake.

You often use WinRAR to extract as well as compress files. But today you encounter the mistake that whenever you click on Winrar, Windows will notify that "file is corrupt". This article will guide you the way to fix this mistake.

REASONS OF "THE ARCHIVE IS EITHER IN UNKNOWN FORMAT OR DAMAGED"
- Maybe because the file is faulty in the compression process, data of the archive is lost partly.
- Because users use IDM to download multiple files simultaneously. Hence, some files of the archive is not downloaded with this tool.
- The archive is infected with virus or attacked by malware.

HOW TO FIX:
To fix this mistake, you can use following methods.

Method 1: Extract corrupt files by using tools like PAR, WinZip, 7Zip. Or use the "repair archive" feature on Winrar.

Method 2: Use the debug and recover data feature when the archive is faulty. If you do not how to use this feature, you can consult here.

Method 3:  Use the other download supporting software like FlashGet to download archives.

Hope that after this article you will know how to troubleshoot "the archive is either in unknown format or damaged" simply without taking much time.
 

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Which is better, Winrar or WinZip?
WinRAR - Set the priority to the low system configuration
WinRAR password recovery by RAR Password Unlocker

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