Excel Upload problem in asp.net

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Hello All,

When i am trying to upload excel on server that getting me following error:

please help me to solve the error:

Retrieving the COM class factory for component with CLSID {00024500-0000-0000-C000-000000000046} failed due to the following error: 80040154 Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).

Code:

string NewFileLocation = string.Empty;
NewFileLocation = string.Format("{0}{1}", FileLocation, "x");

if (System.IO.File.Exists(NewFileLocation))
System.IO.File.Delete(NewFileLocation);

Microsoft.Office.Interop.Excel.Application excelApp = new Microsoft.Office.Interop.Excel.Application();
excelApp.Visible = false;

Microsoft.Office.Interop.Excel.Workbook eWorkbook = excelApp.Workbooks.Open(FileLocation, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing,
Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);

eWorkbook.SaveAs(NewFileLocation, Microsoft.Office.Interop.Excel.XlFileFormat.xlOpenXMLWorkbook, Type.Missing, Type.Missing, Type.Missing,
Type.Missing, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlNoChange, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);

eWorkbook.Close(false, Type.Missing, Type.Missing);

FileLocation = NewFileLocation;
FileExtension = ".xlsx";

Thanks,
Anil Shingala

Posted 21-Apr-15 23:15pm

Anil Shingala

Updated 22-Apr-15 1:21am

v2

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Comments

ShahidRiaz 22-Apr-15 5:25am

can you please share the code?

Anil Shingala 22-Apr-15 7:20am

string NewFileLocation = string.Empty;
NewFileLocation = string.Format("{0}{1}", FileLocation, "x");

if (System.IO.File.Exists(NewFileLocation))
System.IO.File.Delete(NewFileLocation);

Microsoft.Office.Interop.Excel.Application excelApp = new Microsoft.Office.Interop.Excel.Application();
excelApp.Visible = false;

Microsoft.Office.Interop.Excel.Workbook eWorkbook = excelApp.Workbooks.Open(FileLocation, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing,
Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);

eWorkbook.SaveAs(NewFileLocation, Microsoft.Office.Interop.Excel.XlFileFormat.xlOpenXMLWorkbook, Type.Missing, Type.Missing, Type.Missing,
Type.Missing, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlNoChange, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);

eWorkbook.Close(false, Type.Missing, Type.Missing);

FileLocation = NewFileLocation;
FileExtension = ".xlsx";

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Richard Deeming · Accepted Answer · 2015-04-22T01:49:00

Error 80040154 means Office is not installed on the server.

You should also read the following Microsoft knowledgebase article:

Considerations for server-side Automation of Office[^]

Microsoft does not currently recommend, and does not support, Automation of Microsoft Office applications from any unattended, non-interactive client application or component (including ASP, ASP.NET, DCOM, and NT Services), because Office may exhibit unstable behavior and/or deadlock when Office is run in this environment.

There are various ways to create and read Excel spreadsheets on the server without using Office interop. For example: