using Microsoft.Office.Interop.Excel;using Microsoft.Office.Core;/// <summary>/// Takes a CSV file and sucks it into the specified worksheet of this workbook at the specified range/// </summary>/// <param name="importFileName">Specifies the full path to the .CSV file to import</param>/// <param name="destinationSheet">Excel.Worksheet object corresponding to the destination worksheet.</param>/// <param name="destinationRange">Excel.Range object specifying the destination cell(s)</param>/// <param name="columnDataTypes">Column data type specifier array. For the QueryTable.TextFileColumnDataTypes property.</param>/// <param name="autoFitColumns">Specifies whether to do an AutoFit on all imported columns.</param>public void ImportCSV(string importFileName, Excel.Worksheet destinationSheet,  Excel.Range destinationRange, int[] columnDataTypes, bool autoFitColumns){  destinationSheet.QueryTables.Add(    "TEXT;" + Path.GetFullPath(importFileName),  destinationRange, Type.Missing);  destinationSheet.QueryTables[1].Name = Path.GetFileNameWithoutExtension(importFileName);  destinationSheet.QueryTables[1].FieldNames = true;  destinationSheet.QueryTables[1].RowNumbers = false;  destinationSheet.QueryTables[1].FillAdjacentFormulas = false;  destinationSheet.QueryTables[1].PreserveFormatting = true;  destinationSheet.QueryTables[1].RefreshOnFileOpen = false;  destinationSheet.QueryTables[1].RefreshStyle = XlCellInsertionMode.xlInsertDeleteCells;  destinationSheet.QueryTables[1].SavePassword = false;  destinationSheet.QueryTables[1].SaveData = true;  destinationSheet.QueryTables[1].AdjustColumnWidth = true;  destinationSheet.QueryTables[1].RefreshPeriod = 0;  destinationSheet.QueryTables[1].TextFilePromptOnRefresh = false;  destinationSheet.QueryTables[1].TextFilePlatform = 437;  destinationSheet.QueryTables[1].TextFileStartRow = 1;  destinationSheet.QueryTables[1].TextFileParseType = XlTextParsingType.xlDelimited;  destinationSheet.QueryTables[1].TextFileTextQualifier = XlTextQualifier.xlTextQualifierDoubleQuote;  destinationSheet.QueryTables[1].TextFileConsecutiveDelimiter = false;  destinationSheet.QueryTables[1].TextFileTabDelimiter = false;  destinationSheet.QueryTables[1].TextFileSemicolonDelimiter = false;  destinationSheet.QueryTables[1].TextFileCommaDelimiter = true;  destinationSheet.QueryTables[1].TextFileSpaceDelimiter = false;  destinationSheet.QueryTables[1].TextFileColumnDataTypes = columnDataTypes;  Logger.GetInstance().WriteLog("Importing data...");  destinationSheet.QueryTables[1].Refresh(false);  if (autoFitColumns==true)    destinationSheet.QueryTables[1].Destination.EntireColumn.AutoFit();  // cleanup  this.ActiveSheet.QueryTables[1].Delete();}

myOwnWorkbookClass.ImportCSV(   @"C:/MyStuff/MyFile.CSV",   (Excel.Worksheet)(MyWorkbook.Worksheets[1]),   (Excel.Range)(((Excel.Worksheet)MyWorkbook.Worksheets[1]).get_Range("$A$7")),   new int[] { 2, 2, 2, 2, 2 }, true);