c#读取生成excel表格文件xls、xlsx格式文件

全栈工程师开发手册 （作者：栾鹏）

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c#存储生成excel表格格式xls、xlsx格式的文件

需要电脑安装对应版本的office，并且在项目中引用excel

测试代码

static void Main(){    List<string> alldata = new List<string>();    alldata.Add("第一行");    alldata.Add("第2行");    alldata.Add("第叁行");    list2excel(alldata,"列名","test.xls");}

将list<string>生成表格的函数

//导出到execl，需要导入Microsoft.Office.Interop.Excel        public static void list2excel(List<String> strarray,string column_name,string path)        {            System.Data.DataTable dt = new System.Data.DataTable();            dt.Columns.Add(column_name, System.Type.GetType("System.String"));            foreach ( String str in strarray)            {                DataRow dr = dt.NewRow();                dr[0] = str;                dt.Rows.Add(dr);            }            DataTabletoExcel(dt, path);        }

将DataTable生成excel函数

public static bool DataTabletoExcel(System.Data.DataTable dt, string AbosultedFilePath)        {            if (dt == null)                return false;            Microsoft.Office.Interop.Excel.Application excApp = new Microsoft.Office.Interop.Excel.Application();            if (excApp==null)            {                MessageBox.Show("无法创建excel对象，可能您的电脑未安装excel");                return false;            }            Microsoft.Office.Interop.Excel.Workbook workBook = excApp.Workbooks.Add(Microsoft.Office.Interop.Excel.XlWBATemplate.xlWBATWorksheet);            Microsoft.Office.Interop.Excel.Worksheet workSeet = workBook.Worksheets[1]; //取得sheet1            Microsoft.Office.Interop.Excel.Range range = null;            int tableCount = dt.Rows.Count;            int rowRead = 0;            float percent = 0;            for (int i = 0; i < dt.Columns.Count; i++)            {                workSeet.Cells[1, i + 1] = dt.Columns[i].ColumnName;                //设置标题的样式                range = (Microsoft.Office.Interop.Excel.Range)workSeet.Cells[1, i + 1];                range.Font.Bold = true; //粗体                range.Font.Size = "12";//字体大小                range.Font.Name = "宋体";                range.HorizontalAlignment = Microsoft.Office.Interop.Excel.XlHAlign.xlHAlignCenter; //居中                range.BorderAround(Microsoft.Office.Interop.Excel.XlLineStyle.xlContinuous, Microsoft.Office.Interop.Excel.XlBorderWeight.xlThin, Microsoft.Office.Interop.Excel.XlColorIndex.xlColorIndexAutomatic, null); //背景色                range.EntireColumn.AutoFit(); //自动设置列宽                range.EntireRow.AutoFit(); //自动设置行高            }            for (int r = 0; r < dt.Rows.Count; r++)            {                for (int c = 0; c < dt.Columns.Count; c++)                {                    //写入内容                    workSeet.Cells[r + 2, c + 1] = "'" + dt.Rows[r][c].ToString();                    //设置样式                    range = (Microsoft.Office.Interop.Excel.Range)workSeet.Cells[r + 2, c + 1];                    range.Font.Size = 9; //字体大小                    range.BorderAround(Microsoft.Office.Interop.Excel.XlLineStyle.xlContinuous, Microsoft.Office.Interop.Excel.XlBorderWeight.xlThin, Microsoft.Office.Interop.Excel.XlColorIndex.xlColorIndexAutomatic, null); //加边框                    range.EntireColumn.AutoFit(); //自动调整列宽                }                rowRead++;                percent = ((float)(100 * rowRead)) / tableCount;                System.Windows.Forms.Application.DoEvents();            }            range.Borders[Microsoft.Office.Interop.Excel.XlBordersIndex.xlInsideHorizontal].Weight = Microsoft.Office.Interop.Excel.XlBorderWeight.xlThin;            if (dt.Columns.Count > 1)            {                range.Borders[Microsoft.Office.Interop.Excel.XlBordersIndex.xlInsideVertical].Weight = Microsoft.Office.Interop.Excel.XlBorderWeight.xlThin;            }            try            {                workBook.Saved = true;                workBook.SaveCopyAs(AbosultedFilePath);            }            catch { }            workBook.Close();            if (excApp != null)            {                excApp.Workbooks.Close();                excApp.Quit();                int generation = System.GC.GetGeneration(excApp);                System.Runtime.InteropServices.Marshal.ReleaseComObject(excApp);                excApp = null;                System.GC.Collect(generation);            }            GC.Collect(); //强行销毁            #region 强行杀死最近打开的Excel进程            System.Diagnostics.Process[] excelProc = System.Diagnostics.Process.GetProcessesByName("EXCEL");            System.DateTime startTime = new DateTime();            int m, killID = 0;            for (m = 0; m < excelProc.Length; m++)            {                if (startTime < excelProc[m].StartTime)                {                    startTime = excelProc[m].StartTime;                    killID = m;                }            }            if (excelProc[killID].HasExited == false)            {                excelProc[killID].Kill();            }            #endregion            return true;        }