Microsoft Office Excel cannot access the file 'c:\inetpub\wwwroot\Timesheet\App_Data\Template.xlsx'

I have my code as follows :-

Microsoft.Office.Interop.Excel.Application oXL = null;
Microsoft.Office.Interop.Excel.Sheets sheets;
Application excel = new Microsoft.Office.Interop.Excel.Application();


excel.Workbooks.Add(System.Reflection.Missing.Value);

/*
    * Here is the complete detail's about Workbook.Open()
    * 
    *  Excel.Workbooks.Open(String Filename, Object UpdateLinks, Object ReadOnly, Object Format, 
    *  Object Password, Object WriteResPassword, Object IgnoreReadOnlyRecommended, Object Origin,
    *  Object Delimiter, Object Editable, Object Notify, Object Converter, Object AddToMru, Object Local, Object CorruptLoad)
    */

Workbook workbook = excel.Workbooks.Open(
    System.Web.HttpContext.Current.Server.MapPath("~/App_Data/Template.xlsx"),
    Missing.Value, true, Missing.Value, Missing.Value,
    Missing.Value, Missing.Value, Missing.Value,
    Missing.Value, Missing.Value, Missing.Value,
    Missing.Value, Missing.Value, Missing.Value,
    Missing.Value);
sheets = workbook.Worksheets;

Now for the line :-

workbook = excel.Workbooks.Open(
    System.Web.HttpContext.Current.Server.MapPath("~/App_Data/Template.xlsx"),
    Missing.Value, true, Missing.Value, Missing.Value,
    Missing.Value, Missing.Value, Missing.Value,
    Missing.Value, Missing.Value, Missing.Value,
    Missing.Value, Missing.Value, Missing.Value,
    Missing.Value);

It gets executed directly from the visual studio (F5) but when i try to access it with IIS it wont work. Throws error as follows:-

Microsoft Office Excel cannot access the file 'c:\inetpub\wwwroot\Timesheet\App_Data\Template.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.

I have tried the work around as:-

• Folder and the file exist, giving access to the IUSR_### (IIS user) and to the ASPNET user in the folder where the file is.
  
  • At Component Services(DCOM) given access to appropriate user.

I have already given all permission's to the folder where the template(.xlsx) exists

Any suggestions??

Solution 1:

Try this:

1. Create the directory

C:\Windows\SysWOW64\config\systemprofile\Desktop

(for the 32-bit version of Excel/Office on a 64-bit Windows computer) or

C:\Windows\System32\config\systemprofile\Desktop

(for a 32-bit version of Office on a 32-bit Windows computer or a 64-bit version of Office on a 64-bit Windows computer).

2. For the Desktop directory, add Full control permissions for the relevant user (for example in Win7 & IIS 7 & DefaultAppPool set permissions for user IIS AppPool\DefaultAppPool).

Original post with answer:

• Excel 2007 automation on top of a Windows Server 2008 x64

Solution 2:

Let me note that in my place, adding the c:\windows\syswow64\config\systemprofile\desktop directory didn't work.

The point is that WOW64 stands for Windows on Windows64, that means it actually applies for 32-bit programs running on the 64bit OS.

Since I have 64-bit Excel installed, the proper directory turned out to be the c:\windows\system32\config\systemprofile\desktop

Solution 3:

In my case, I followed the suggestions provided here and solved the problem.

Steps:

1. Run dcomcnfg
2. Go to Console Root \Component Services\Computers\My Computer\DCOM Config\Microsoft Excel Application
3. Right click Microsoft Excel Application
4. Select Properties
5. Go to Identity tab
6. Select The interactive user.

In step 2, if you can't locate that path then try running mmc comexp.msc /32 instead of dcomcnfg.