How to replace paragraph mark

I use the document, but the results after the output is down the line. So I inserted the tab and want to replace as illustrated file.
This is very easy in Word using the Wildcard, as ^13^t^13 -> tab
Please help me do this in Aspose.Word or how to use documentBuilder.InsertDocument which when output has no paragraph character (paragraph mark)
I use:
documentBuilder.InsertDocument(ConvertRtfToDocument(rtfdocument), ImportFormatMode.UseDestinationStyles)
How to use:
document.Range.Replace(New RegularExpressions.Regex("^13^t^13"), vbTab)
Error.jpg (39.2 KB)
Thanhks.

My problem is resolved. Thanks.

@gangucay,

Thanks for your inquiry. It is nice to hear from you that your problem has been solved. Please feel free to ask if you have any question about Aspose.Words, we will be happy to help you.