.7z.004 — 7-Zip Split Archive Part
Igor Pavlov · 1999
This file is one part of a larger, split archive created by 7-Zip, requiring all parts to be reassembled.
Key Features
- Part of a multi-volume archive, allowing large files to be split.
- Utilizes the robust 7-Zip compression algorithm.
- Requires sequential parts for complete extraction.
- Supports various compression levels and encryption.
Best For
- Splitting large archives into manageable chunks.
- Storing compressed data with high compression ratios.
- Distributing large files across multiple physical media or network transfers.
- Securely archiving data with strong encryption options.
Less Ideal For
- Single, small archives where splitting is unnecessary.
- Quickly accessing individual files without reassembling the archive.
- Formats optimized for specific media types (e.g., video codecs).
- Systems with limited disk space where the overhead of multiple parts might be an issue.
Common Use Cases
- Splitting very large archives for easier transfer via email or cloud storage.
- Distributing large software or media files across multiple download links.
- Archiving extensive datasets that exceed single-file size limits.
- Creating backups of large directories that need to be split for storage.
How to Open It
- Ensure all parts of the split archive (.7z.001, .7z.002, .7z.003, .7z.004, etc.) are in the same folder.
- Download and install a compatible archive utility like 7-Zip (Windows) or Keka (macOS).
- Open the first part of the archive (.7z.001) using the chosen program.
- The program will automatically detect and use the subsequent parts to extract the contents.
What is a .7z.004 file?
The .7z.004 file is not a standalone archive but rather a segment of a larger multi-part archive created using the 7-Zip compression program. When a large file or a collection of files is compressed into a .7z archive, it can be split into smaller, more manageable pieces. These parts are sequentially numbered, with .7z.001 being the first part, .7z.002 the second, and so on. To access the contents, all parts must be present and opened with the corresponding archive utility.
Programs That Open .7z.004 Files
| Platform | Program | ||
|---|---|---|---|
| Windows | 7-Zip | Free | Official |
| WinRAR | Paid | Official | |
| macOS | Keka | Free | |
| The Unarchiver | Free | ||
| Linux | 7z command-line | Free | Official |
| PeaZip | Free | ||
| Android | RAR | Paid | Official |
| 7Zipper | Free | ||
| iOS | iZip | Free | |
| Documents by Readdle | Free | ||
| Web Browser | ezyZip | Free |
Common Problems with .7z.004 Files
Frequently Asked Questions
A .7z file is a single, complete archive. A .7z.004 file is a segment of a larger archive that has been split into multiple parts for easier handling.
No, you cannot open a single split archive part independently. You must have the first part (.7z.001) and all subsequent parts to successfully extract the contents.
The most common and recommended program is 7-Zip (available for Windows). macOS users can use Keka or The Unarchiver, and Linux users can use the 7z command-line tool or PeaZip.
Technical Details
This file format is a segment of a multi-volume archive. The 7-Zip algorithm is used for compression, offering high compression ratios. Each part contains a portion of the compressed data, along with metadata that helps in reconstructing the original archive when all parts are combined and processed by compatible software.