.NET读取Office文件内容（word、excel、ppt）_using word = microsoft.office.interop.word; using -优快云博客

本文链接：https://blog.youkuaiyun.com/aaakingwin/article/details/24360077

本文介绍了如何使用C#编程语言来读取Word、Excel和PPT等Office文档的内容。通过具体的代码示例展示了如何逐页逐行地读取文档中的文字，并对读取到的数据进行简单的清理。

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引用命名空间

using Microsoft.Office.Core;
using Word = Microsoft.Office.Interop.Word;
using Excel = Microsoft.Office.Interop.Excel;
using PowerPoint = Microsoft.Office.Interop.PowerPoint;

Word文件的读取

 public string ReadFile()
        {
            string text = string.Empty;
            Word.ApplicationClass app = null;
            Word.Document doc = null;
            object readOnly = true;
            object missing = System.Reflection.Missing.Value;
            object fileName = this.FileInstance.FullName;
            try
            {
                app = new Microsoft.Office.Interop.Word.ApplicationClass();
                doc = app.Documents.Open(ref fileName, ref missing, ref readOnly, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing);
                text = doc.Content.Text.Replace("\r", string.Empty).Replace("\n", string.Empty).Replace("\t", string.Empty);
            }
            catch
            {
                
            }
            finally
            {
                doc.Close(ref missing, ref missing, ref missing);
                doc = null;
                app.Quit(ref missing, ref missing, ref missing);
                app = null;
            }
            return text;
        }

Excel文件的读取

public string ReadFile()
        {
            string text = string.Empty;
            Excel.ApplicationClass app = null;
            Excel.Workbook book = null;
            object readOnly = true;
            object missing = System.Reflection.Missing.Value;
            object fileName = this.FileInstance.FullName;
            try
            {
                app = new Microsoft.Office.Interop.Excel.ApplicationClass();
                book = app.Workbooks.Open(fileName.ToString(), missing, readOnly, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing);
                foreach (Excel.Worksheet sheet in book.Sheets)
                {
                    for (int i = 1; i <= sheet.UsedRange.Cells.Rows.Count; i++)
                    {
                        for (int j = 1; j <= sheet.UsedRange.Cells.Columns.Count; j++)
                        {
                            text += ((Excel.Range)sheet.Cells[i, j]).Text.ToString().Replace("\r", string.Empty).Replace("\n", string.Empty).Replace("\t", string.Empty) + " ";
                        }
                    }
                }
            }
            catch
            {

            }
            finally
            {
                book.Close(missing, fileName, missing);
                book = null;
                app.Quit();
                app = null;
            }
            return text;
        }

PPT文件的读取

   public override string ReadFile()
        {
            string text = string.Empty;
            PowerPoint.ApplicationClass app = null;
            PowerPoint.Presentation pp = null;
            object readOnly = true;
            object missing = System.Reflection.Missing.Value;
            object fileName = this.FileInstance.FullName;
            try
            {
                app = new Microsoft.Office.Interop.PowerPoint.ApplicationClass();
                pp = app.Presentations.Open(fileName.ToString(), Microsoft.Office.Core.MsoTriState.msoTrue, Microsoft.Office.Core.MsoTriState.msoFalse, Microsoft.Office.Core.MsoTriState.msoFalse);
                foreach (PowerPoint.Slide slide in pp.Slides)
                {
                    foreach (PowerPoint.Shape shape in slide.Shapes)
                    {
                        text += shape.TextFrame.TextRange.Text.Replace("\r", string.Empty).Replace("\n", string.Empty).Replace("\t", string.Empty) + " ";
                    }
                }               
            }
            catch
            {

            }
            finally
            {
                pp.Close();
                pp = null;
                app.Quit();
                app = null;
            }

            return text;
        }