Extract file . ZIP with accent on name

Question

I’m using the lib System.IO.Compression.ZipFile to unzip files .zip and came across a big problem while trying to extract files that have accents in the name.

If I try to extract with encoding UTF-8:

ZipFile.ExtractToDirectory(caminhoArquivoZip, "E:\\localParaExtrair", Encoding.UTF8);

Files that have accented names get the character instead of the accented letter.

If I pass another Encoding (Unicode, for example), a Exception:

No support for specified input name encoding.

If you try with Encoding.Default another strange character is in place of the accented letter.

Is this a library problem? Is there any way to get these files out properly?

I am fully aware that one should not write file names with accents, but I am not the one who creates the files.

Answer 1

With this Enconding works:

ZipFile.ExtractToDirectory(caminhoArquivoZip, "E:\\localParaExtrair", System.Text.Encoding.GetEncoding(850));

The GetEncoding initializes a new class instance Encoding corresponding to codepage specified.

(Source: documentation of . Net)

The code page 850 represents the coding ibm850 - Eastern European (DOS)

Answer 2

The file name and/or folder name cannot contain any special characters, such as accentuation. Just like folders cannot have ?/%$ ......

Even if you try it directly in windows explorer it will give you the same error.