Oracle Heterogeneous Services to create link With Excel spreadsheet.

Hi
Please adivse how to use "Oracle Heterogeneous Services" to create a database link from Oracle to the Excel spreadsheet.
Wishes
Jawad

Dear Anwar,
I'm using XPSP2 10gR2Enterprise
SID=ORCL
host=andor (my PC's name)
Pls help me. I'm struggling with HS also so I've followed your lines, meaning:
I can create the database link, but cannot retrieve data from source. (see 7.)
1a. I have created the Excel file c:\EXCL.xls
NEV DATUM BOOL NUMBER
Stefán Balázs 09.nov TRUE 0
Sebestyén Dénes 10.nov TRUE -11
Tóth Andor 11.nov FALSE 12.3
c: is partition on the same server where 10g sits.
1b. I've created an ODBC system DSN for this excel file, named EXCL.
2. tnsnames.ora has bee nupdated by this:
ORCL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = andor)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
EXCL =
     (DESCRIPTION =
          (ADDRESS_LIST =
               (ADDRESS = (PROTOCOL = TCP)(HOST = andor)(PORT = 1521))
          (CONNECT_DATA =
               (SID = EXCL)
          (HS = OK)
3. listener.ora
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = D:\oracle\product\10.2.0\db_1)
(PROGRAM = extproc)
(SID_DESC =
(SID_NAME = EXCL)
(ORACLE_HOME = D:\oracle\product\10.2.0\db_1)
(PROGRAM = EXCL)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
(ADDRESS = (PROTOCOL = TCP)(HOST = andor)(PORT = 1521))
4. initexcl.ora in hs directory:
HS_FDS_CONNECT_INFO = EXCL
HS_FDS_TRACE_LEVEL = 0
Listener restarted.
5. in iSQLPlus:
SQL> CREATE DATABASE LINK excl USING 'excl';
Database link created.
6. in Enterprise Manager there is a Database Link:
     database links: EXCL.REGRESS.RDBMS.DEV.US.ORACLE.COM
service name: excl
7. testing the database link says:
The Database Link is not active.
ORA-28545: .Unable to retrieve text of NETWORK/NCR message 65535... ORA-02063: previous 2 lines from EXCL
Please help me to get over this.

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