Projenize referans olarak COM tabından Microsoft Word Object Library'i ekleyin. Tek yapmanız gereken windows formunuza bir button eklemek ve buttonun click eventine aşağıdaki kodları yazmak. Sonucu çok beğeneceksiniz :)

private void button1_Click(object sender, System.EventArgs e)
{
object oMissing = System.Reflection.Missing.Value;
object oEndOfDoc = "\\endofdoc"; /* \endofdoc is a predefined bookmark */

//Start Word and create a new document.
Word._Application oWord;
Word._Document oDoc;
oWord = new Word.Application();
oWord.Visible = true;
oDoc = oWord.Documents.Add(ref oMissing, ref oMissing,
ref oMissing, ref oMissing);

//Insert a paragraph at the beginning of the document.
Word.Paragraph oPara1;
oPara1 = oDoc.Content.Paragraphs.Add(ref oMissing);
oPara1.Range.Text = "Heading 1";
oPara1.Range.Font.Bold = 1;
oPara1.Format.SpaceAfter = 24;    //24 pt spacing after paragraph.
oPara1.Range.InsertParagraphAfter();

//Insert a paragraph at the end of the document.
Word.Paragraph oPara2;
object oRng = oDoc.Bookmarks.get_Item(ref oEndOfDoc).Range;
oPara2 = oDoc.Content.Paragraphs.Add(ref oRng);
oPara2.Range.Text = "Heading 2";
oPara2.Format.SpaceAfter = 6;
oPara2.Range.InsertParagraphAfter();

//Insert another paragraph.
Word.Paragraph oPara3;
oRng = oDoc.Bookmarks.get_Item(ref oEndOfDoc).Range;
oPara3 = oDoc.Content.Paragraphs.Add(ref oRng);
oPara3.Range.Text = "This is a sentence of normal text. Now here is a table:";
oPara3.Range.Font.Bold = 0;
oPara3.Format.SpaceAfter = 24;
oPara3.Range.InsertParagraphAfter();

//Insert a 3 x 5 table, fill it with data, and make the first row
//bold and italic.
Word.Table oTable;
Word.Range wrdRng = oDoc.Bookmarks.get_Item(ref oEndOfDoc).Range;
oTable = oDoc.Tables.Add(wrdRng, 3, 5, ref oMissing, ref oMissing);
oTable.Range.ParagraphFormat.SpaceAfter = 6;
int r, c;
string strText;
for(r = 1; r <= 3; r++)
for(c = 1; c <= 5; c++)
{
strText = "r" + r + "c" + c;
oTable.Cell(r, c).Range.Text = strText;
}
oTable.Rows[1].Range.Font.Bold = 1;
oTable.Rows[1].Range.Font.Italic = 1;

//Add some text after the table.
Word.Paragraph oPara4;
oRng = oDoc.Bookmarks.get_Item(ref oEndOfDoc).Range;
oPara4 = oDoc.Content.Paragraphs.Add(ref oRng);
oPara4.Range.InsertParagraphBefore();
oPara4.Range.Text = "And here's another table:";
oPara4.Format.SpaceAfter = 24;
oPara4.Range.InsertParagraphAfter();

//Insert a 5 x 2 table, fill it with data, and change the column widths.
wrdRng = oDoc.Bookmarks.get_Item(ref oEndOfDoc).Range;
oTable = oDoc.Tables.Add(wrdRng, 5, 2, ref oMissing, ref oMissing);
oTable.Range.ParagraphFormat.SpaceAfter = 6;
for(r = 1; r <= 5; r++)
for(c = 1; c <= 2; c++)
{
strText = "r" + r + "c" + c;
oTable.Cell(r, c).Range.Text = strText;
}
oTable.Columns[1].Width = oWord.InchesToPoints(2); //Change width of columns 1 & 2
oTable.Columns[2].Width = oWord.InchesToPoints(3);

//Keep inserting text. When you get to 7 inches from top of the
//document, insert a hard page break.
object oPos;
double dPos = oWord.InchesToPoints(7);
oDoc.Bookmarks.get_Item(ref oEndOfDoc).Range.InsertParagraphAfter();
do
{
wrdRng = oDoc.Bookmarks.get_Item(ref oEndOfDoc).Range;
wrdRng.ParagraphFormat.SpaceAfter = 6;
wrdRng.InsertAfter("A line of text");
wrdRng.InsertParagraphAfter();
oPos = wrdRng.get_Information
(Word.WdInformation.wdVerticalPositionRelativeToPage);
}
while(dPos >= Convert.ToDouble(oPos));
object oCollapseEnd = Word.WdCollapseDirection.wdCollapseEnd;
object oPageBreak = Word.WdBreakType.wdPageBreak;
wrdRng.Collapse(ref oCollapseEnd);
wrdRng.InsertBreak(ref oPageBreak);
wrdRng.Collapse(ref oCollapseEnd);
wrdRng.InsertAfter("We're now on page 2. Here's my chart:");
wrdRng.InsertParagraphAfter();

//Insert a chart.
Word.InlineShape oShape;
object oClassType = "MSGraph.Chart.8";
wrdRng = oDoc.Bookmarks.get_Item(ref oEndOfDoc).Range;
oShape = wrdRng.InlineShapes.AddOLEObject(ref oClassType, ref oMissing,
ref oMissing, ref oMissing, ref oMissing,
ref oMissing, ref oMissing, ref oMissing);

//Demonstrate use of late bound oChart and oChartApp objects to
//manipulate the chart object with MSGraph.
object oChart;
object oChartApp;
oChart = oShape.OLEFormat.Object;
oChartApp = oChart.GetType().InvokeMember("Application",
BindingFlags.GetProperty, null, oChart, null);

//Change the chart type to Line.
object[] Parameters = new Object[1];
Parameters[0] = 4; //xlLine = 4
oChart.GetType().InvokeMember("ChartType", BindingFlags.SetProperty,
null, oChart, Parameters);

//Update the chart image and quit MSGraph.
oChartApp.GetType().InvokeMember("Update",
BindingFlags.InvokeMethod, null, oChartApp, null);
oChartApp.GetType().InvokeMember("Quit",
BindingFlags.InvokeMethod, null, oChartApp, null);
//... If desired, you can proceed from here using the Microsoft Graph
//Object model on the oChart and oChartApp objects to make additional
//changes to the chart.

//Set the width of the chart.
oShape.Width = oWord.InchesToPoints(6.25f);
oShape.Height = oWord.InchesToPoints(3.57f);

//Add text after the chart.
wrdRng = oDoc.Bookmarks.get_Item(ref oEndOfDoc).Range;
wrdRng.InsertParagraphAfter();
wrdRng.InsertAfter("THE END.");

//Close this form.
this.Close();
}

Unutmadan, projemize mutlaka import etmemiz gereken 2 adet namespace var.

using Word = Microsoft.Office.Interop.Word;
using System.Reflection;

İyi çalışmalar :)

Kaynak: http://support.microsoft.com/kb/316384

Dip not: Google'a görsel aramada "c# microsoft word" yazınca benim wordle ilgili makalelerimin çıkması pek hoş :)

Misal: C#.Net ile Microsoft Word’de Otomatik İmza Oluşturma