builder.CreateFile("docx");
var oDocument = Api.GetDocument();
var oParagraph, oRun;
oParagraph = oDocument.GetElement(0);
oParagraph = Api.CreateParagraph();
oParagraph.AddText("Dear John Smith.");
oDocument.Push(oParagraph);
oParagraph = Api.CreateParagraph();
oParagraph.AddText("ONLYOFFICE is glad to announce that starting today, you are appointed Commercial director to the company of your dream.");
oDocument.Push(oParagraph);
oParagraph = Api.CreateParagraph();
oRun = Api.CreateRun();
oRun.SetBold(true);
oRun.AddText("Please note: ");
oParagraph.AddElement(oRun);
oRun = Api.CreateRun();
oRun.AddText("this text is used to demonstrate the possibilities of ");
oParagraph.AddElement(oRun);
oRun = Api.CreateRun();
oRun.SetBold(true);
oRun.AddText("ONLYOFFICE Document Builder");
oParagraph.AddElement(oRun);
oRun = Api.CreateRun();
oRun.AddText(" and cannot be used as real appointment to the position in any real company.");
oParagraph.AddElement(oRun);
oDocument.Push(oParagraph);
oParagraph = Api.CreateParagraph();
oParagraph.AddText("Best regards,");
oParagraph.AddLineBreak();
oParagraph.AddText("ONLYOFFICE Document Builder Team");
oDocument.Push(oParagraph);
builder.SaveFile("docx", "SampleText.docx");
builder.CloseFile();