Microsoft Excel无法访问ASP.net Project中的文件

Question

I created web application that read excel file per row, and when i run it from my localhost it work perfectly. But when i deploy it to web server [win 7 64 bit], it generate error like this :

Microsoft Excel cannot access the file 'C:\TestReadExcel\testdata.xlsx'. There are several possible reasons:

• The file name or path does not exist.
• The file is being used by another program.
• The workbook you are trying to save has the same name as a currently open workbook.

This error came from this code (i used Microsoft.Office.Interop.Excel):

Line 195:        Dim workbook = xlApplication.Workbooks.Open(fileName)
..
..

I already tried various way :

 1. add folder **desktop** C:\Windows\System32\config\systemprofile\ and in C:\Windows\SysWOW64\config\systemprofile  -it not working
 2. add security account for network services and iis_iusrs in DCOM config - microsoft excel application (allow all) - it not working
 3. already restart my web server after i configured step 1-2 , and still not working
 4. already test to add security account full control in folder C:\TestReadExcel\ , and still not working

Is there anything else that i need to do to solve this issue? or is there any way than use interop excel ?

Need your help thank you.

Answer 1

use Server.Mappath to get the file path. and make sure IIS_User have read rights to that folder where you have placed your Excel File.