insert bytea data manually

Hi,

I have a question about bytea columns. I want manually select the
column.. this looks like this..when I export it from pgadmin into a csv
file..
"10";"PK\003\004\024\000\000\000\000\000\214\22453\341\24519\036\000\000\000\03.........."

so how I can inert it back to the database manually.. like this..

insert into files (docid,file) values
(1,'PK\003\004\024\000\000\000\000\000\214\22453\341\24519\036\000\000\000\03..........")

but it brings error when i try this..?

can sombody help me how i can extract bytea data and insert it back
manually with SQL commands?