File.1 conversion table in a tab delimited format

CGP_A0000000001 AAAA
CGP_A0000000002 AAAB
CGP_A0000000003 AAAC
CGP_A0000000004 AAAD
CGP_A0000000005 AAAE
CGP_A0000000006 AAAF
CGP_A0000000007 AAAG
CGP_A0000000008 AAAH
CGP_A0000000009 AAAI
CGP_A0000000010 AAAJ
CGP_A0000000011 AAAK
CGP_A0000000012 AAAL
CGP_A0000000013 AAAM
CGP_A0000000014 AAAN
CGP_A0000000015 AAAO
CGP_A0000000016 AAAP
CGP_A0000000017 AAAQ
CGP_A0000000018 AAAR
CGP_A0000000019 AAAS
CGP_A0000000020 AAAT
CGP_A0000000021 AAAU
CGP_A0000000022 AAAV