C# 电子表格类在简单excel文件上引发FileFormatException错误
我需要阅读50MB.XLS excel,但我收到以下错误:C# 电子表格类在简单excel文件上引发FileFormatException错误,c#,openxml,C#,Openxml,我需要阅读50MB.XLS excel,但我收到以下错误: System.IO.FileFormatException {"File contains corrupted data."} 我选择OpenXMLReader类进行阅读,因为它似乎适合这种情况。 但它在代码的第一行崩溃了 SpreadsheetDocument.Open(filename, false) Excel文件可在此处下载: 它的简单97-2003 excel测试文件有10行 static void Main(st
System.IO.FileFormatException {"File contains corrupted data."}
我选择OpenXMLReader类进行阅读,因为它似乎适合这种情况。
但它在代码的第一行崩溃了
SpreadsheetDocument.Open(filename, false)
Excel文件可在此处下载:
它的简单97-2003 excel测试文件有10行
static void Main(string[] args)
{
ReadExcelFileSAX(@"C:\Users\User\Desktop\SAXFile.xls");
}
static void ReadExcelFileSAX(string filename)
{
using (SpreadsheetDocument myDoc = SpreadsheetDocument.Open(filename, false))
{
WorkbookPart workbookPart = myDoc.WorkbookPart;
WorksheetPart worksheetPart = workbookPart.WorksheetParts.First();
OpenXmlReader reader = OpenXmlReader.Create(worksheetPart);
string text;
while (reader.Read())
{
if (reader.ElementType == typeof(CellValue))
{
text = reader.GetText();
Console.WriteLine(text);
}
}
}
}
我缺少什么?您试图打开的文件是一个预OpenXML二进制格式的Excel文件
我确信读者在检测到它不是一个有效的ZIP存档文件时会立即引发一个错误 您试图打开的文件是预OpenXML二进制格式Excel文件
我确信读者在检测到它不是一个有效的ZIP存档文件时会立即引发一个错误 使用OpenXML之前的这段代码将帮助它将xls保存为xlsx,但它有一点变通方法
static void ConvertXlsToXlsx(string xlsFilePath, string xlsxFilePath)
{
Microsoft.Office.Interop.Excel.Application excelApp = new Microsoft.Office.Interop.Excel.Application();
excelApp.Visible = false;
Microsoft.Office.Interop.Excel.Workbook eWorkbook = excelApp.Workbooks.Open(xlsFilePath, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);
eWorkbook.SaveAs(xlsxFilePath, Microsoft.Office.Interop.Excel.XlFileFormat.xlOpenXMLWorkbook, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlNoChange, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);
eWorkbook.Close(false, Type.Missing, Type.Missing);
}
更好的解决方案可能是使用不同的库ExcelDataReader
我测试了它,并将示例print.CSV运行到控制台
static void XLSFileStreamReader(string filePath)
{
FileStream stream = new FileStream(filePath, FileMode.Open);
// Reading from a binary Excel file ('97-2003 format; *.xls)
IExcelDataReader excelReader2003 = ExcelReaderFactory.CreateBinaryReader(stream);
// DataSet - The result of each spreadsheet will be created in the result.Tables
DataSet result = excelReader2003.AsDataSet();
// Data Reader methods
foreach (DataTable table in result.Tables)
{
for (int i = 0; i < table.Rows.Count; i++)
{
for (int j = 0; j < table.Columns.Count; j++)
Console.Write("\"" + table.Rows[i].ItemArray[j] + "\";");
Console.WriteLine();
}
}
// Free resources (IExcelDataReader is IDisposable)
excelReader2003.Close();
}
我在这里找到的
PS:FileStream可能应该在USING block中。使用OpenXML之前的这段代码将帮助它将xls保存为xlsx,但它有一点变通方法
static void ConvertXlsToXlsx(string xlsFilePath, string xlsxFilePath)
{
Microsoft.Office.Interop.Excel.Application excelApp = new Microsoft.Office.Interop.Excel.Application();
excelApp.Visible = false;
Microsoft.Office.Interop.Excel.Workbook eWorkbook = excelApp.Workbooks.Open(xlsFilePath, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);
eWorkbook.SaveAs(xlsxFilePath, Microsoft.Office.Interop.Excel.XlFileFormat.xlOpenXMLWorkbook, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlNoChange, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);
eWorkbook.Close(false, Type.Missing, Type.Missing);
}
更好的解决方案可能是使用不同的库ExcelDataReader
我测试了它,并将示例print.CSV运行到控制台
static void XLSFileStreamReader(string filePath)
{
FileStream stream = new FileStream(filePath, FileMode.Open);
// Reading from a binary Excel file ('97-2003 format; *.xls)
IExcelDataReader excelReader2003 = ExcelReaderFactory.CreateBinaryReader(stream);
// DataSet - The result of each spreadsheet will be created in the result.Tables
DataSet result = excelReader2003.AsDataSet();
// Data Reader methods
foreach (DataTable table in result.Tables)
{
for (int i = 0; i < table.Rows.Count; i++)
{
for (int j = 0; j < table.Columns.Count; j++)
Console.Write("\"" + table.Rows[i].ItemArray[j] + "\";");
Console.WriteLine();
}
}
// Free resources (IExcelDataReader is IDisposable)
excelReader2003.Close();
}
我在这里找到的
PS:FileStream可能应该在USING block中。谢谢您的回复,但我不明白。我想读取excel文件,那么我该怎么做呢?对于.XLSX,代码是有效的,所以如果有可能,可以通过编程方式将.xls格式更改为.XLSX格式?那可能是另一种方式。谢谢你的回复,但我不明白。我想读取excel文件,那么我该怎么做呢?对于.XLSX,代码是有效的,所以如果有可能,可以通过编程方式将.xls格式更改为.XLSX格式?这可能是另一种方式。