unknown data in access

I have a problem in access. I have an access db with some tables, and I cant read the data stored i开发者_如何学运维n that and the characters are some squares. I tried many fonts but I can't read it yet.

can anybody help me?

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I found a website which converts characters to Unicode. each code is a kind of group number.

http://code.cside.com/3rdpage/us/unicode/converter.html
actually they inserted numbers as ascii codes :)