My boss asked to use an old SQL Server database and build a new application. When I open it, I found that all the Arabic data appear like this 

<http://i60.tinypic.com/14lraee.png>

Firstname |

---

ÚÌæØÚÌæØ |

Èä ÍãíÏÉ |

ÈæÒÇäÉ |

ÈæÔÑæÑ |

the column type is already `nvarchar`

The old application use the same database and retrieve normally all the data arabic and non arabic i dont have the code source of this old application 

How can I convert the existent data to appear normally ?

I tried both SQL command like 

```
SELECT UNICODE(@nstring) 

```

or 

```
NCHAR(UNICODE(@nstring)) 

```

and C# convert method like

<https://social.msdn.microsoft.com/Forums/vstudio/en-us/49c55ea4-83c4-4b3b-81ef-d3a54ddf919e/how-do-i-convert-utf8-format-to-unicode-format?forum=netfxbcl>

I tried open it with SQL server management studio i tried changing character set , i tried changing the Collection SET but no luck !