c# 4.0 - How to convert saved text file encoding to UTF8? -

recently saved text file on computer when open again saw strings like:

 "˜ÌÇí ÍÑÝã ÚÌíÈå¿" 

now want know possible reconvert original text (utf8)?

i try codes doesn't works

  string tempstr="˜ÌÇí ÍÑÝã ÚÌíÈå¿";    encoding ansi = encoding.getencoding(1256);   byte[] ansibytes = ansi.getbytes(tempstr);   byte[] utf8bytes = encoding.convert(ansi, encoding.utf8, ansibytes);   string utf8string = encoding.utf8.getstring(utf8bytes); 

you can use like:

string str = encoding.getencoding(1256).getstring(encoding.getencoding("iso-8859-1").getbytes(tempstr)) 

the string wasn't decoded... bytes "enlarged" char, like:

byte[] bytes = ... char[] chars = new char[bytes.length]; (int = 0; < bytes.length; i++) {     chars[i] = bytes[i]; } string str = new string(chars); 

now... transformation same done codepage iso-8859-1. have done reverse, or have used codepage me, selected second one.

encoding.getencoding("iso-8859-1").getbytes(tempstr) 

this gave me original byte[]

then i've done tests , seems text in beginning wasn't utf8, in codepage 1256, arabic codepage. i

string str = encoding.getencoding(1256).getstring(...); 

the thing, ˜ doesn't seem part of original string.

there possibility:

string str = encoding.getencoding(1256).getstring(encoding.getencoding(1252).getbytes(tempstr)); 

the codepage 1252 codepage used in usa , in big part of europe. if have windows configured english, there chance uses 1252 default codepage. result different using iso-8859-1