I am doing some Tds Correction for the financial Year 2008-09 and 2007-2008 n i had tried to validate it with almost all version ie,2.129,2.126,2.128,3.0 but yet i hd to face the same problem of error T-FV-1000 Invalid File Header Record Length.Kindly send me solution to overcome this problem at my id Nhmshr734@gmail.com as earliest as problem Thanking You. Snigdha Mishra