rvdhout / sevenzipextractor

C# wrapper for 7z.dll

SevenZipExtractor

C# wrapper for 7z.dll (x86 and x64 included)

• .NET Standard 2.0
• .NET Framework 4.5

Every single star makes maintainer happy! ⭐

NuGet

Install-Package SevenZipExtractor

Supported formats:

• 7Zip
• APM
• Arj
• BZip2
• Cab
• Chm
• Compound
• Cpio
• CramFS
• Deb
• Dll
• Dmg
• Exe
• Fat
• Flv
• GZip
• Hfs
• Iso
• Lzh
• Lzma
• Lzma86
• Mach-O
• Mbr
• Mub
• Nsis
• Ntfs
• Ppmd
• Rar
• Rar5
• Rpm
• Split
• SquashFS
• Swf
• Swfc
• Tar
• TE
• Udf
• UEFIc
• UEFIs
• Vhd (?)
• Wim
• Xar
• XZ
• Z
• Zip

Examples

Extract all

using (ArchiveFile archiveFile = new ArchiveFile(@"Archive.ARJ"))
{
    archiveFile.Extract("Output"); // extract all
}

Extract to file or stream

using (ArchiveFile archiveFile = new ArchiveFile(@"Archive.ARJ"))
{
    foreach (Entry entry in archiveFile.Entries)
    {
        Console.WriteLine(entry.FileName);
        
        // extract to file
        entry.Extract(entry.FileName);
        
        // extract to stream
        MemoryStream memoryStream = new MemoryStream();
        entry.Extract(memoryStream);
    }
}

Guess archive format from files without extensions

using (ArchiveFile archiveFile = new ArchiveFile(@"c:\random-archive"))
{
    archiveFile.Extract("Output"); 
}

Guess archive format from streams

WebRequest request = WebRequest.Create ("http://www.contoso.com/file.aspx?id=12345");
HttpWebResponse response = (HttpWebResponse)request.GetResponse();

using (ArchiveFile archiveFile = new ArchiveFile(response.GetResponseStream())
{
    archiveFile.Extract("Output"); 
}

Wiki

• Extracting from solid archives
• Extract tar.gz, tag.xz

7z.dll

7z.dll (x86 and x64) will be added to your BIN folder automatically.

License

• Based on code from: http://www.codeproject.com/Articles/27148/C-NET-Interface-for-Zip-Archive-DLLs
• Source code in this repo is licensed under The MIT License
• 7z binaries license http://www.7-zip.org/license.txt

Changelog

1.0.17 / 2022.04.08

• #54 4Gb+ archives fixed! 🎉 (Thanks Pyroluk)

1.0.16 / 2021.01.17

• 7z binaries updated to 21.07.0.0
• PR#56 - signature for SquashFS (Thanks mmoosstt)
• PR#53 - look for binaries in bin folder (Thanks CupSunshine)

1.0.15 / 2020.01.14

• .NETStandard 2.0 support PR#38

1.0.14

• Entry.Extrat - preserveTimestamp is true by default #34
• Dynamic operations can only be performed in homogenous AppDomain" #36