shows excel format error if I read .xls or .xlsx file from IIS

Hi

I am trying to read xlsx file from IIS, it show me error like "The file you are tyring to open .xlsx is in a different format than specified by the file extension. verify the file is not corrupted and is from trusted source before opening the file. Do you want to open the file now?" if I give url likehttp://dev.mysite.com/test.xlsx?id =1.

But it works fine if I give url likehttp://dev.mysite.com/test.xlsx (without querystring)

This error shows if I open xls or xlsx also.

I have office 2007 in my system

Is the problem with office 2007?

Can any help me on this issue..

Thanks

KVReddy

[991 byte] By [kvreddy] at [2008-1-4]