c# - 如何在 .NET Interop.Excel.Workbooks.OpenText 中指定编码

Question

我无法找到有关使用 excel.Workbooks.OpenText 方法打开文本文件时指定编码(特别是 utf-8)的可能性的任何信息。我的问题是，我正在尝试打开一个以 UTF-8 编码的 CSV 文件，如果没有此设置，它会加载为一堆曲线。

非常感谢!

Answer 1

我发现这是导入 UTF-8 csv 文件的有效解决方案: (它可以稍微优化，但这样你就可以朝着正确的方向工作)

Microsoft.Office.Interop.Excel.Application excelApp = new Microsoft.Office.Interop.Excel.Application();
Workbook wb;
Worksheet ws;
Range range;
int[,] a = new int[,] { { 1, 1 }, { 2, 2 }, { 3, 2 }, { 4, 2 }, { 5, 2 }, { 6, 2 }, { 7, 2 }, { 8, 2 }, { 9, 2 }, { 10, 2 }, { 11, 2 }, { 12, 2 }, { 13, 2 }, { 14, 2 }, { 15, 2 }, { 16, 2 }, { 17, 2 }, { 18, 2 }, { 19, 2 }, { 20, 2 }, { 21, 2 }, { 22, 2 } };
excelApp.Workbooks.OpenText(ofdGetExcel.FileName,
                                            65001,
                                            1,
                                            XlTextParsingType.xlDelimited,
                                            XlTextQualifier.xlTextQualifierDoubleQuote,
                                            false,
                                            false,
                                            false,
                                            true,
                                            false,
                                            false,
                                            false,
                                            a,
                                            Type.Missing,//",",
                                            Type.Missing,//".",
                                            Type.Missing,//false,
                                            Type.Missing);//false);
wb = excelApp.ActiveWorkbook;
ws = wb.Worksheets.get_Item(1);
range = ws.get_Range("A2");

Microsoft.Office.Interop.Excel.QueryTable QT = ws.QueryTables.Add("TEXT;" + ofdGetExcel.FileName, range);
QT.Name = ofdGetExcel.FileName;
QT.FieldNames = true;
QT.RowNumbers = true;
QT.FillAdjacentFormulas = false;
QT.PreserveFormatting = true;
QT.RefreshOnFileOpen = false;
QT.RefreshStyle = Microsoft.Office.Interop.Excel.XlCellInsertionMode.xlInsertDeleteCells;
QT.SavePassword = false;
QT.SaveData = true;
QT.AdjustColumnWidth = true;
QT.RefreshPeriod = 0;
QT.TextFilePromptOnRefresh = false;
QT.TextFilePlatform = 65001;
QT.TextFileStartRow = 1;
QT.TextFileParseType = Microsoft.Office.Interop.Excel.XlTextParsingType.xlDelimited;
QT.TextFileTextQualifier = Microsoft.Office.Interop.Excel.XlTextQualifier.xlTextQualifierDoubleQuote;
QT.TextFileConsecutiveDelimiter = false;
QT.TextFileTabDelimiter = false;
QT.TextFileSemicolonDelimiter = false;
QT.TextFileCommaDelimiter = true;
QT.TextFileSpaceDelimiter = false;
QT.TextFileDecimalSeparator = ",";
QT.TextFileThousandsSeparator = ".";

ws.QueryTables[1].Destination.EntireColumn.AutoFit();

ws.QueryTables[1].Refresh(false);

ws.QueryTables[1].Delete();