Does Not accept cyrillic letters?

[xfirebg]

Hello, when i create table from csv with rows who have cyrillic letters its not recognized by postgreSQL
pgfutter --db "Test" --port "5432" --user "postgres" --pw "1111" csv numbertest.csv

Test=# select * from import.numbertest;
ERROR: character with byte sequence 0xef 0xbf 0xbd in encoding "UTF8" has no equivalent in encoding "WIN1251"

Any suggestions?