教你C#將CSV轉(zhuǎn)為Excel的實(shí)現(xiàn)方法

第教你C#將CSV轉(zhuǎn)為Excel的實(shí)現(xiàn)方法CSV(CommaSeparatedValues)文件是一種純文本文件，包含用逗號(hào)分隔的數(shù)據(jù)，常用于將數(shù)據(jù)從一個(gè)應(yīng)用程序?qū)牖驅(qū)С龅搅硪粋€(gè)應(yīng)用程序。通過將CSV文件轉(zhuǎn)為EXCEL，可執(zhí)行更多關(guān)于數(shù)據(jù)編輯、格式設(shè)置等操作。下面，將通過C#及VB.NET代碼展示如何來實(shí)現(xiàn)轉(zhuǎn)換。

一、程序環(huán)境

可通過以下途徑來安裝Excel庫(kù)：

1.通過NuGet安裝Spire.XLS；

2.官方下載包，解壓安裝到本地指定路徑。在VisualStudio中打開解決方案資源管理器，將本地安裝路徑下Bin文件夾下的dll添加引用至程序。

二、將CSV轉(zhuǎn)為Excel

C#

usingSpire.Xls;

namespaceCSVtoExcel_XLS

classProgram

staticvoidMain(string[]args)

//加載CSV文件

Workbookworkbook=newWorkbook();

workbook.LoadFromFile("test.csv",",",1,1);

//獲取第一個(gè)工作表

Worksheetsheet=workbook.Worksheets[0];

//訪問工作表中使用的范圍

CellRangeusedRange=sheet.AllocatedRange;

//當(dāng)將范圍內(nèi)的數(shù)字保存為文本時(shí)，忽略錯(cuò)誤

usedRange.IgnoreErrorOptions=IgnoreErrorType.NumberAsText;

//自適應(yīng)行高、列寬

usedRange.AutoFitColumns();

usedRange.AutoFitRows();

//保存文檔

workbook.SaveToFile("result.xlsx",ExcelVersion.Version2013);

System.Diagnostics.Process.Start("result.xlsx");

}

VB.NET

ImportsSpire.Xls

NamespaceCSVtoExcel_XLS

ClassProgram

PrivateSharedSubMain(argsAsString())

'加載CSV文件

DimworkbookAsNewWorkbook()

workbook.LoadFromFile("test.csv",",",1,1)

'獲取第一個(gè)工作表

DimsheetAsWorksheet=workbook.Worksheets(0)

'訪問工作表中使用的范圍

DimusedRangeAsCellRange=sheet.AllocatedRange

'當(dāng)將范圍內(nèi)的數(shù)字保存為文本時(shí)，忽略錯(cuò)誤

usedRange.IgnoreErrorOptions=IgnoreErrorType.NumberAsText

'自適應(yīng)行高、列寬

usedRange.AutoFitColumns()

usedRange.AutoFitRows()

'保存文檔

workbook.SaveToFile("result.xlsx",ExcelVersion.Version2013)

System.Diagnostics.Process.Start("result.xlsx")

EndSub

EndClass

EndNamespace

補(bǔ)充知識(shí)：C#.csv文件轉(zhuǎn)為Excel格式；Excel格式轉(zhuǎn)換為.csv，代碼如下所示：

usingSystem;

usingSystem.Diagnostics;

usingSystem.IO;

usingSystem.Reflection;

usingSystem.Windows.Forms;

usingExcel=Microsoft.Office.Interop.Excel;

namespaceWinFromAPP

publicpartialclassForm1:Form

publicForm1()

InitializeComponent();

///summary

///將Csv文件轉(zhuǎn)換為XLS文件

////summary

///paramname="FilePath"文件全路路徑/param

///returns返回轉(zhuǎn)換后的Xls文件名/returns

publicstaticstringCSVSaveasXLS(stringFilePath)

QuertExcel();

string_NewFilePath="";

Excel.ApplicationexcelApplication;

Excel.WorkbooksexcelWorkBooks=null;

Excel.WorkbookexcelWorkBook=null;

Excel.WorksheetexcelWorkSheet=null;

excelApplication=newExcel.ApplicationClass();

excelWorkBooks=excelApplication.Workbooks;

excelWorkBook=((Excel.Workbook)excelWorkBooks.Open(FilePath,Missing.Value,Missing.Value,Missing.Value,Missing.Value,Missing.Value,Missing.Value,Missing.Value,Missing.Value,Missing.Value,Missing.Value,Missing.Value,Missing.Value,Missing.Value,Missing.Value));

excelWorkSheet=(Excel.Worksheet)excelWorkBook.Worksheets[1];

excelApplication.Visible=false;

excelApplication.DisplayAlerts=false;

_NewFilePath=FilePath.Replace(".csv",".xls");

excelWorkBook.SaveAs(_NewFilePath,Excel.XlFileFormat.xlAddIn,Missing.Value,Missing.Value,Missing.Value,Missing.Value,Excel.XlSaveAsAccessMode.xlNoChange,Missing.Value,Missing.Value,Missing.Value,Missing.Value,Missing.Value);

excelWorkBook.Close();

QuertExcel();

//ExcelFormatHelper.DeleteFile(FilePath);

//可以不用殺掉進(jìn)程QuertExcel();

GC.Collect(System.GC.GetGeneration(excelWorkSheet));

GC.Collect(System.GC.GetGeneration(excelWorkBook));

GC.Collect(System.GC.GetGeneration(excelApplication));

catch(Exceptionexc)

thrownewException(exc.Message);

finally

GC.Collect();

return_NewFilePath;

///將xls文件轉(zhuǎn)換為csv文件

///returns返回轉(zhuǎn)換后的csv文件名/returns

publicstaticstringXLSSavesaCSV(stringFilePath)

_NewFilePath=FilePath.Replace(".xls",".csv");

//excelWorkSheet._SaveAs(FilePath,Excel.XlFileFormat.xlCSVWindows,Missing.Value,Missing.Value,Missing.Value,Missing.Value,Missing.Value,Missing.Value,Missing.Value);

excelWorkBook.SaveAs(_NewFilePath,Excel.XlFileFormat.xlCSV,Missing.Value,Missing.Value,Missing.Value,Missing.Value,Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlNoChange,Missing.Value,Missing.Value,Missing.Value,Missing.Value,Missing.Value);

//ExcelFormatHelper.DeleteFile(FilePath);

///刪除一個(gè)指定的文件

///paramname="FilePath"文件路徑/param

///returns/returns

publicstaticboolDeleteFile(stringFilePath)

boolIsFind=File.Exists(FilePath);

if(IsFind)

File.Delete(FilePath);

else

thrownewIOException("指定的文件不存在");

returntrue;

///執(zhí)行過程中可能會(huì)打開多個(gè)EXCEL文件所以殺掉

privatestaticvoidQuertExcel()