TDS Upgrade Utility

Hi

I upgraded an DB 2007B to 8.81 PL 08.

Now i'm doing TDS upgrading by utility tool. My excel format for financial year master is

Absolute ID	U_TDSFINCD	U_TDSFINDC	U_TDSFMDT	U_TDSTODT	U_TDSASEYR

when i click check data in that tool. i'm getting the error: Fail to Load Excel File

when i click UpgradeDB. I'm gettig the error message : In order to perform upgrade, database needs a backup. Upgrade failed.

I'm doing this in upgraded DB 8.8 PL 08. whether its correct. And what are all the other procedure for upgrading TDS which was not mentioned on the document. If any one upgraded TDS form 2007B means please give me an solution and suggestions.

Thanks and Regards,

Sudhir B.