You can use import(imp) in case of 9i

else import data pump in case of 10g

YOu should identify wat way the export dump is generated using imp or impdp

Here is the syntax

For import

grant unlimited tablespace to ZZZZZZZ

ZZZZZ == can be list of schemas to be imported

imp file= XXXX.dmp log=aaaa.log full=y

Here XXXX – dump file
aaaa – log name
full =y represents all schemas

For import datapump

impdp directory=data_pump_dir dumpfile=XXXX.dmp logfile=aaa.log

Regards
Inprise