Closing an Excel Workbook

Question

I have a bit of code that opens an xls workbook;

Excel.Workbooks workBooks;
workBooks = excelApp.Workbooks;
workbook = workBooks.Open(sourceFilePath + source         


        

Answer 1

Why not combine the 2. This will take care of any problems with closing before saving is complete. There is an option in the Close method to save the file.

workbook.Close(true, fileName, Missing.Value);

Also if the file is saving correctly, and your problem is purely because the excel.exe process is still running, it could be because you didn't close and release EVERYTHING needed. I have had this before and developed a more complete close down routine. My code for shutting down an excel file is:

        book.Close(true, fileName, Missing.Value); //close and save individual book
        allBooks.Close(); //close all books
        excel.Quit();
        Marshal.ReleaseComObject(allCells); //any used range objects
        Marshal.ReleaseComObject(sheet);
        Marshal.ReleaseComObject(sheets);
        Marshal.ReleaseComObject(book);
        Marshal.ReleaseComObject(allBooks);
        Marshal.ReleaseComObject(excel);

This works 100% of the time for me.