导出Excel是程序很常用到的功能，.Net Core可以借助Open-XML-SDK来导出Excel。
Open-XML-SDK
open-xml-sdk是是微软开源的项目。Open XML SDK是用于Open XML文档(DOCX, XLSX, and PPTX)的开源类库。它可以：
依赖 WindowsBase 或 System.IO.Packaging
开源地址：Open-XML-SDK
Nuget：DocumentFormat.OpenXml
示例
首先添加Nuget包引用
直接上代码：
static void Main(string[] args)
{
var spreadsheetDocument = SpreadsheetDocument.Create("F:\\OpenXml.xlsx", SpreadsheetDocumentType.Workbook);
var workbookpart = spreadsheetDocument.AddWorkbookPart();
workbookpart.Workbook = new Workbook();
WorksheetPart worksheetPart = workbookpart.AddNewPart();
worksheetPart.Worksheet = new Worksheet(new SheetData());
Sheets sheets = spreadsheetDocument.WorkbookPart.Workbook.AppendChild(new Sheets());
Sheet sheet = new Sheet() { Id = spreadsheetDocument.WorkbookPart.GetIdOfPart(worksheetPart), SheetId = 1, Name = "Sheet1" };
sheets.Append(sheet);
var sheetData = worksheetPart.Worksheet.GetFirstChild();
for (int i = 0; i < 10; i++)
{
Row row = new Row();
for (int j = 0; j < 10; j++)
{
Cell dataCell = new Cell();
dataCell.CellValue = new CellValue($"{i + 1}行{j + 1}列");
dataCell.DataType = new EnumValue(CellValues.String);
row.AppendChild(dataCell);
}
sheetData.Append(row);
}
workbookpart.Workbook.Save();
spreadsheetDocument.Close();
}
导出的Excel如图：
读取Excel
读取Excel的代码会相对简单一些：
static void Main(string[] args)
{
using (SpreadsheetDocument doc = SpreadsheetDocument.Open(@"F:\OpenXml.xlsx", false))
{
WorkbookPart wbPart = doc.WorkbookPart;
Sheet mysheet = (Sheet)doc.WorkbookPart.Workbook.Sheets.ChildElements.FirstOrDefault();
Worksheet worksheet = ((WorksheetPart)wbPart.GetPartById(mysheet.Id)).Worksheet;
SheetData sheetData = (SheetData)worksheet.ChildElements.FirstOrDefault();
foreach (var row in sheetData.ChildElements)
{
foreach (var cell in (row as Row).ChildElements)
{
var cellValue = (cell as Cell).CellValue;
if (cellValue != null)
{
Console.WriteLine(cellValue.Text);
}
}
}
}
}
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。
