Microsoft.Office.Interop.Excel for Office 2007

Question

I want to try the Windows form application that converts a office file (Excel, Word, Powerpoint) into a PDF file. My client's PC will not install Visual Studio and Office version is 2007. My application uses Microsoft.Office.Iterop.Excel.dll to covert to the PDF format. This dll file cannot be found on my client's PC and an error has occurred as following.

System.AugumentException: Value does not fall within the expected range.
at Microsoft.Office.Interop.Excel._Workbook.ExportAsFixedFromat(.......)

How can I solve this problem?

My code is following

public bool ExportWorkbookToPdf(string workbookPath, string outputPath)
        {
            // If either required string is null or empty, stop and bail out
            if (string.IsNullOrEmpty(workbookPath) || string.IsNullOrEmpty(outputPath))
            {
                return false;
            }

            // Create COM Objects
            Microsoft.Office.Interop.Excel.Application excelApplication;
            Microsoft.Office.Interop.Excel.Workbook excelWorkbook;

            // Create new instance of Excel
            excelApplication = new Microsoft.Office.Interop.Excel.Application();

            // Make the process invisible to the user
            excelApplication.ScreenUpdating = false;

            // Make the process silent
            excelApplication.DisplayAlerts = false;

            // Open the workbook that you wish to export to PDF
            excelWorkbook = excelApplication.Workbooks.Open(workbookPath);

            MessageBox.Show(workbookPath);
            // If the workbook failed to open, stop, clean up, and bail out
            if (excelWorkbook == null)
            {
                excelApplication.Quit();

                excelApplication = null;
                excelWorkbook = null;
                MessageBox.Show("in null");
                return false;
            }

            var exportSuccessful = true;
            try
            {
                // Call Excel's native export function (valid in Office 2007 and Office 2010, AFAIK)
                excelWorkbook.ExportAsFixedFormat(Microsoft.Office.Interop.Excel.XlFixedFormatType.xlTypePDF, outputPath);
            }
            catch (System.Exception ex)
            {
                MessageBox.Show(ex.Message);
                // Mark the export as failed for the return value...
                exportSuccessful = false;

                // Do something with any exceptions here, if you wish...
                // MessageBox.Show...        
            }
            finally
            {
                // Close the workbook, quit the Excel, and clean up regardless of the results...
                excelWorkbook.Close();
                excelApplication.Quit();

                excelApplication = null;
                excelWorkbook = null;
            }

            // You can use the following method to automatically open the PDF after export if you wish
            // Make sure that the file actually exists first...
            if (System.IO.File.Exists(outputPath))
            {
                MessageBox.Show(outputPath);
                System.Diagnostics.Process.Start(outputPath);
            }

            return exportSuccessful;
        }

Answer 1

As already said in the comments, each client needs to install the 2007 Microsoft Office Add-in: Microsoft Save as PDF. It doesn't matter if you are on Windows 8.1 or have any PDF reader installed. You need that Add-in to write PDFs with Office 2007. (You don't need any Add-In with Office 2010 or 2013.)