Wondershare Repairit
File Repair

Perfectly repair files with various corruption issues in simple steps.

  • Fix all file issues like blank files, files not opening, unreadable files, etc.
  • Repair all file formats of PDF, Word, Excel, PowerPoint, ZIP, and Adobe files.
  • Repair corrupted files with a very high success rate in 3 simple steps.
  • Perfectly compatible with different Windows & Mac system.
file repair

Why Cannot 7-Zip Open File As Archive?

When opening the archive in 7zip, some files didn’t open. How could I fix the error 7 zip cannot open the file as an archive?

Dealing with the number of files for the same project? You need to compress them in a zip file and keep things hand and easy. But wait! Are you facing any error like 7zip cannot open the file as an archive? Have you ever thought about the reasons behind this error and in case if this error pops up on your screen, what you are going to do to get rid of it. Then here is what you need to read and follow.

This article is all about telling what 7-zip is and how the issue of 7z cannot open the file as an archive can be resolved. Below mentioned are some proposed methods that only need steps to follow and you will be done with ruling out the error.

7-zip is said to be the open-source file archiver that compresses a huge number of files in compressed containers which are termed archives. It creates archives that contain different directories and files. These archives consist of 4 kinds of blocks that carry data. Any issue with any block may cause an error i.e. 7zip cannot open the file as an archive. The following are the blocks:

  • The start header (32 bytes), contains the signature and link to End Header
  • The compressed data of files
  • A compressed metadata block for files i.e. it contains links to Compressed Data, information about compression methods, CRC, file names, sizes, and time stamps.
  • The end header: it contains a link to the Compressed Metadata Block.

The common issue faced by the users while using the 7-zip is the 7z cannot open the file as an archive. This issue carries one or other reasons which are enlisted below. Along with the reasons, there are proposed methods to fix the issue at hand and keep the pace working.

Let’s move to the core!

Part 1. Why Can't 7-zip Open Some Zip Archives?

When the issue surface i.e. 7zip cannot open the file as an archive, the very next thing that strikes the mind is the possible reasons behind the issue. Once the problem is identified, the next step is to elaborate on the causes, and lastly there comes the part to propose definite solutions. Talking about the reasons behind 7z cannot open the file as an archive, here is the list that describes the most relevant ones.

  • The error occurs when the archive carries a wrong or incorrect header.
  • Sometimes, 7-zip is unable to open some headers from the start or end of the archive.
  • The archive is said to be corrupted and carries no definite link to the end header.
  • Most of the time, the start and the end header are completely ok but the overall size of the archive is what creating an issue.
  • The error may also occur when the end archive is corrupted or missing due to which 7z cannot open files in archives.


Done with understanding the potential reason behind why 7zip cannot open the file as an archive? Then let’s move to the next section where there are mentioned are the possible solutions to fix the problem.

Keep on reading!

You are going to get a solution that would work for you!

Part 2. Try Another Extractor Software

Of course! You are dealing with a technical issue that needs potential software to work on the issue and to solve the problem. So as the Yodot! When you see the error pop up i.e. 7zip cannot open the file as an archive on-screen during the extraction mechanism, the most effective and time-saving solution is Yodot.

Being the right choice for repairing the corrupt or otherwise inaccessible files, this software helps to scan everything to completely rule out the corruption. It helps to extract every file which was otherwise not accessible by using other methods. It is compatible with Windows Server 2003, Server 2008, XP, and Vista, 7, 8, 8.1, and 10 operating systems.

Now talking about the steps to follow for fixing the issue of 7z cannot open the file as an archive, here is what you need to follow:

Step 1: Start with obtaining Yodot ZIP Repair software and install it on your PC

Step 2: Next step is to run the application, click the 7z archive by selecting the Browse option and click on Repair button


Step 3: Now end with verifying the repaired 7-ZIP archive files and folders in the option of Repaired File Contents window and move the cursor on Select Folder to select the location where repaired 7-ZIP archive can be saved

Yes! You are done in just three steps to fix the 7z cannot open the file as an archive error.

Keep working without any hurdles now!

Part 3. Repair Corrupted Zip Files with Zip Repair Software

Encountering a corrupted or unzippable 7z file can be a frustrating roadblock in your file management journey. Fear not, as we have curated a comprehensive guide to help you navigate through this challenge seamlessly.

When you cannot open or extract files from a 7z archive, understanding the repair process becomes paramount. Whether you're dealing with a "7 zip cannot open file as archive" error or struggling to access the file as a 7z archive, a solution is at your fingertips. Here’s a special tool for you:Wondershare Repairit.

In the realm of file repair, Wondershare Repairit stands out as a reliable and efficient tool specifically designed to address the intricacies of corrupted 7z files. Emphasizing its effectiveness in repairing downloaded files, this tool provides a user-friendly interface and powerful recovery capabilities.

  • Repair damaged files with all levels of corruption, including blank files, files not opening, unrecognizable format, unreadable content, files layout changed, etc.

  • Support to repair all formats of PDF, Word, Excel, PowerPoint, Zip, and Adobe files.

  • Perfectly repair corrupted files with a very high success rate, without modifying the original file.

  • No limit to the number and size of the repairable files.

  • Support Windows 11/10/8/7/Vista, Windows Server 2003/2008/2012/2016/2019/2022, and macOS 10.10~macOS 13.

Now let’s discuss the steps that should be followed while repairing the 7zip cannot open the file as an archive with Repairit file repair.

Step 1: Download Wondershare Repairit, select File Repair from the main interface of Repairit and choose Zip File Repair, then upload the corrupted Zip files you want to repair.

add zip file

Step 2: Click the Repair button and Repairit will start repairing the damaged Zip files.

repair zip file

Step 3: Once the repairing process finishes, you can click the Preview button to check the result and save the Zip file to your local storage.

preview and save zip file

This is how easily, Repairit File Repair is going to sort out the issue of 7z cannot open the file as an archive in no time by merely following some right steps in the software.

Being an all-time reliable option, Repairit never fails to benefit users and provide them with efficient solutions that work every time. Furthermore, you can learn more solutions in this post.

Part 4. Other Common Errors of 7-zip

Another error encountered while using the 7 zip is the CRC error.

Each document record holds a CRC esteem while zipping the substance and this worth will be spared inside the file. Again while unfastening files, decompressing applications like WinZip matches determined CRC esteem with an existing estimation of that record. On the off chance that both the qualities don't coordinate, at that point it gives a route for CRC mistake. Experiencing a CRC error message during 7Zip document extraction suggests that either substance of record is harmed or changed. Numerous reasons cause CRC error in 7Zip record, for example,

    1. Transfer Error: Usually interfered with the move of 7Zip document over a system like the expansion of additional bits by programmers, web dangers, and so on can cause CRC error
    2. Incomplete Download: Errors or interferences while downloading .7z documents from the system can result in CRC error while unfastening 7Zip record
    3. Other reasons: Presence of terrible areas on the capacity drive where 7Zip record is spared, breaking down of WinZip application, and so forth can at times cause CRC error

Apart from the archive errors, there are some of the other errors which you might confront while using the 7-zip. These are said to be the non-7zip archive errors. This is a mistake happened while attempting to concentrate the substance of a 7z record that is defiled or harmed because of components like:

    1. Deficient download: When downloading 7 Zip file unseemly system association, unexpected framework shutdown, and so forth can cause the download procedure fragmented
    2. Off base 7Zip establishment: Errors while introducing 7Zip on the framework can now and again effectively introduce the program yet can degenerate the 7z document that is being opened in it
    3. Driver update: It is an uncommon case, where the framework isn't refreshed with right driver programming and subsequently, 7z document gets harmed when attempted to get to it utilizing 7ZIP program

Hence, this is all about why 7-zip cannot open the file as an archive, the potential reason ruling the problem, and viable solutions to fix the issue.