如何使用C#创建Excel电子表格而不需要在运行代码的计算机上安装Excel?


当前回答

Syncfusion Essential XlsIO可以做到这一点。它对Microsoft office没有依赖性,并且对不同的平台也有特定的支持。

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代码示例:

//Creates a new instance for ExcelEngine.
ExcelEngine excelEngine = new ExcelEngine();
//Loads or open an existing workbook through Open method of IWorkbooks
IWorkbook workbook = excelEngine.Excel.Workbooks.Open(fileName);
//To-Do some manipulation|
//To-Do some manipulation
//Set the version of the workbook.
workbook.Version = ExcelVersion.Excel2013;
//Save the workbook in file system as xlsx format
workbook.SaveAs(outputFileName);

如果您符合资格(收入低于100万美元),可通过社区许可计划免费获得整套控件。注:我为Syncfusion工作。

其他回答

您可以考虑使用XML Spreadsheet 2003格式创建文件。这是一种简单的XML格式,使用了一个文档化的模式。

如果您对xlsx格式感到满意,请尝试我的库EPPlus。它从ExcelPackage的源代码开始,但后来变成了完全重写。

它支持范围、单元格样式、图表、形状、图片、命名范围、自动筛选以及许多其他功能。

您有两个选项:

EPPlus 4,根据LGPL许可(原始分支机构,开发至2020年)EPPlus 5,根据Polyform非商业1.0.0许可(自2020年起)。

从EPPlus 5自述文件:

有了新的许可证,EPPlus在某些情况下仍然可以免费使用,但需要商业许可证才能在商业企业中使用。

EPPlus网站:https://www.epplussoftware.com/

您可以在Visual Studio上安装OpenXml nuget包。以下是将数据表导出到excel文件的代码:

Imports DocumentFormat.OpenXml
Imports DocumentFormat.OpenXml.Packaging
Imports DocumentFormat.OpenXml.Spreadsheet

Public Class ExportExcelClass
    Public Sub New()

    End Sub

    Public Sub ExportDataTable(ByVal table As DataTable, ByVal exportFile As String)
        ' Create a spreadsheet document by supplying the filepath.
        ' By default, AutoSave = true, Editable = true, and Type = xlsx.
        Dim spreadsheetDocument As SpreadsheetDocument = spreadsheetDocument.Create(exportFile, SpreadsheetDocumentType.Workbook)

        ' Add a WorkbookPart to the document.
        Dim workbook As WorkbookPart = spreadsheetDocument.AddWorkbookPart
        workbook.Workbook = New Workbook

        ' Add a WorksheetPart to the WorkbookPart.
        Dim Worksheet As WorksheetPart = workbook.AddNewPart(Of WorksheetPart)()
        Worksheet.Worksheet = New Worksheet(New SheetData())

        ' Add Sheets to the Workbook.
        Dim sheets As Sheets = spreadsheetDocument.WorkbookPart.Workbook.AppendChild(Of Sheets)(New Sheets())

        Dim data As SheetData = Worksheet.Worksheet.GetFirstChild(Of SheetData)()
        Dim Header As Row = New Row()
        Header.RowIndex = CType(1, UInt32)

        For Each column As DataColumn In table.Columns
            Dim headerCell As Cell = createTextCell(table.Columns.IndexOf(column) + 1, 1, column.ColumnName)
            Header.AppendChild(headerCell)
        Next

        data.AppendChild(Header)

        Dim contentRow As DataRow
        For i As Integer = 0 To table.Rows.Count - 1
            contentRow = table.Rows(i)
            data.AppendChild(createContentRow(contentRow, i + 2))
        Next

    End Sub

    Private Function createTextCell(ByVal columnIndex As Integer, ByVal rowIndex As Integer, ByVal cellValue As Object) As Cell
        Dim cell As Cell = New Cell()
        cell.DataType = CellValues.InlineString

        cell.CellReference = getColumnName(columnIndex) + rowIndex.ToString

        Dim inlineString As InlineString = New InlineString()
        Dim t As Text = New Text()
        t.Text = cellValue.ToString()
        inlineString.AppendChild(t)
        cell.AppendChild(inlineString)
        Return cell
    End Function

    Private Function createContentRow(ByVal dataRow As DataRow, ByVal rowIndex As Integer) As Row
        Dim row As Row = New Row With {
            .rowIndex = CType(rowIndex, UInt32)
        }

        For i As Integer = 0 To dataRow.Table.Columns.Count - 1
            Dim dataCell As Cell = createTextCell(i + 1, rowIndex, dataRow(i))
            row.AppendChild(dataCell)
        Next

        Return row
    End Function

    Private Function getColumnName(ByVal columnIndex As Integer) As String
        Dim dividend As Integer = columnIndex
        Dim columnName As String = String.Empty
        Dim modifier As Integer

        While dividend > 0
            modifier = (dividend - 1) Mod 26
            columnName = Convert.ToChar(65 + modifier).ToString() & columnName
            dividend = CInt(((dividend - modifier) / 26))
        End While

        Return columnName
    End Function
End Class

使用Open XML SDK 2.0 for Microsoft Office怎么样?

一些好处:

不需要安装Office由Microsoft制作=像样的MSDN文档只有一个.Net dll可用于项目SDK附带了许多工具,如diff、验证器等

链接:

githubMSDN主登录“How Do I…”起始页blogsMSDN brian_jones发布SDKblogs.MSDN brian_jones描述SDK处理大型文件而不崩溃(与DOM方法不同)

各种Office 2003 XML库适用于较小的excel文件。然而,我发现以XML格式保存的大型工作簿的大小是一个问题。例如,我使用的新XLSX格式的工作簿将是40MB(当然也更紧凑),它将变成360MB的XML文件。

就我的研究而言,有两个商业软件包允许输出到较旧的二进制文件格式。他们是:

宝石盒ComponentOne Excel

两者都不便宜(我认为分别为500美元和800美元)。但两者都独立于Excel本身。

我会好奇的是OpenOffice.org之类的Excel输出模块。我想知道它们是否可以从Java移植到.Net。