1// Install: dotnet add package DocumentFormat.OpenXml
2
3using DocumentFormat.OpenXml;
4using DocumentFormat.OpenXml.Packaging;
5using DocumentFormat.OpenXml.Wordprocessing;
6
7public void CreateDocument(string filePath)
8{
9    using var doc = WordprocessingDocument.Create(filePath, WordprocessingDocumentType.Document);
10
11    // Add main document part
12    var mainPart = doc.AddMainDocumentPart();
13    mainPart.Document = new Document();
14    var body = mainPart.Document.AppendChild(new Body());
15
16    // Add a heading
17    var heading = new Paragraph(
18        new ParagraphProperties(
19            new ParagraphStyleId() { Val = "Heading1" }
20        ),
21        new Run(new Text("Monthly Report"))
22    );
23    body.AppendChild(heading);
24
25    // Add a paragraph with formatted text
26    var para = new Paragraph(
27        new Run(
28            new RunProperties(new Bold()),
29            new Text("Summary: ")
30        ),
31        new Run(new Text("All metrics are within expected ranges."))
32    );
33    body.AppendChild(para);
34
35    // Add a bulleted list
36    string[] items = { "Revenue up 12%", "Costs down 5%", "Customer satisfaction at 94%" };
37    foreach (var item in items)
38    {
39        var listItem = new Paragraph(
40            new ParagraphProperties(
41                new NumberingProperties(
42                    new NumberingLevelReference() { Val = 0 },
43                    new NumberingId() { Val = 1 }
44                )
45            ),
46            new Run(new Text(item))
47        );
48        body.AppendChild(listItem);
49    }
50
51    mainPart.Document.Save();
52}

1public void AddTable(Body body)
2{
3    var table = new Table();
4
5    // Table properties (borders)
6    var tblProperties = new TableProperties(
7        new TableBorders(
8            new TopBorder() { Val = BorderValues.Single, Size = 4 },
9            new BottomBorder() { Val = BorderValues.Single, Size = 4 },
10            new LeftBorder() { Val = BorderValues.Single, Size = 4 },
11            new RightBorder() { Val = BorderValues.Single, Size = 4 },
12            new InsideHorizontalBorder() { Val = BorderValues.Single, Size = 4 },
13            new InsideVerticalBorder() { Val = BorderValues.Single, Size = 4 }
14        )
15    );
16    table.AppendChild(tblProperties);
17
18    // Header row
19    var headerRow = new TableRow();
20    foreach (var header in new[] { "Name", "Department", "Salary" })
21    {
22        var cell = new TableCell(
23            new Paragraph(new Run(
24                new RunProperties(new Bold()),
25                new Text(header)
26            ))
27        );
28        headerRow.AppendChild(cell);
29    }
30    table.AppendChild(headerRow);
31
32    // Data rows
33    var data = new[] {
34        ("Alice", "Engineering", "$120,000"),
35        ("Bob", "Marketing", "$95,000"),
36    };
37
38    foreach (var (name, dept, salary) in data)
39    {
40        var row = new TableRow();
41        row.AppendChild(new TableCell(new Paragraph(new Run(new Text(name)))));
42        row.AppendChild(new TableCell(new Paragraph(new Run(new Text(dept)))));
43        row.AppendChild(new TableCell(new Paragraph(new Run(new Text(salary)))));
44        table.AppendChild(row);
45    }
46
47    body.AppendChild(table);
48}

1// Install: dotnet add package DocX
2
3using Xceed.Document.NET;
4using Xceed.Words.NET;
5
6public void CreateWithDocX(string filePath)
7{
8    using var doc = DocX.Create(filePath);
9
10    // Title
11    doc.InsertParagraph("Monthly Report")
12       .FontSize(24)
13       .Bold()
14       .Alignment = Alignment.center;
15
16    // Body text
17    doc.InsertParagraph("All metrics are within expected ranges.")
18       .FontSize(12)
19       .SpacingAfter(10);
20
21    // Bulleted list
22    var list = doc.AddList("Revenue up 12%", 0, ListItemType.Bulleted);
23    doc.AddListItem(list, "Costs down 5%");
24    doc.AddListItem(list, "Customer satisfaction at 94%");
25    doc.InsertList(list);
26
27    // Table
28    var table = doc.AddTable(3, 3);
29    table.Rows[0].Cells[0].Paragraphs[0].Append("Name").Bold();
30    table.Rows[0].Cells[1].Paragraphs[0].Append("Department").Bold();
31    table.Rows[0].Cells[2].Paragraphs[0].Append("Salary").Bold();
32    table.Rows[1].Cells[0].Paragraphs[0].Append("Alice");
33    table.Rows[1].Cells[1].Paragraphs[0].Append("Engineering");
34    table.Rows[1].Cells[2].Paragraphs[0].Append("$120,000");
35    doc.InsertTable(table);
36
37    doc.Save();
38}

1// Requires Microsoft Word installed
2// Add reference: Microsoft.Office.Interop.Word
3
4using Word = Microsoft.Office.Interop.Word;
5
6public void CreateWithInterop(string filePath)
7{
8    var app = new Word.Application();
9    var doc = app.Documents.Add();
10
11    try
12    {
13        // Add title
14        var titlePara = doc.Paragraphs.Add();
15        titlePara.Range.Text = "Monthly Report";
16        titlePara.Range.Font.Size = 24;
17        titlePara.Range.Font.Bold = 1;
18        titlePara.Range.InsertParagraphAfter();
19
20        // Add body text
21        var bodyPara = doc.Paragraphs.Add();
22        bodyPara.Range.Text = "All metrics are within expected ranges.";
23        bodyPara.Range.Font.Size = 12;
24        bodyPara.Range.Font.Bold = 0;
25        bodyPara.Range.InsertParagraphAfter();
26
27        doc.SaveAs2(filePath);
28    }
29    finally
30    {
31        doc.Close();
32        app.Quit();
33
34        // Release COM objects
35        System.Runtime.InteropServices.Marshal.ReleaseComObject(doc);
36        System.Runtime.InteropServices.Marshal.ReleaseComObject(app);
37    }
38}