The failure of the head verification is due to the different version number, the experiment can be modified by the following methods: Open the DMP file with the notepad++ tool, you can see the header information--texport: V11.01.00, which is the version number of the source database, is modified to the version number of the destination database, such as native 10.02.01, and the import operation is successful.
Import statement
Imp system/(password) file=d:\xxxx.dmp
or imp system/(password) file=d:\xxxx.dmp full=y
Note Character set files, if the DMP file is inconsistent with the current Oracle character set or inconsistent with the Plsql character set, can cause Chinese garbled
View Character Set statements
Select USERENV (' language ') from dual;
Locations in the registry
HKEY_LOCAL_MACHINE/SOFTWARE/ORACLE/[KEYHOME0]
Nls_lang change to the character set you want.
Oracle Import IMP-00010: Not a valid export file, header validation failed