Your code can be a lot simpler. If you are running the code from Word, there is no need to create the application.
You could use Range.InsertParagraphAfter but it is just as easy to include a paragraph mark with the text you are inserting.
Code:
Private Sub InsertingBlankLine()
Dim objWord As Word.Application
Dim txtword As String
Dim objDoc As Document
Dim objRange As Range
Dim objTable As Table
Dim intRows As Integer
Dim intCols As Integer
txtWord = "fsdhfkhfkdhfdskfhd fkdshfdkfhdskfhdsfd fdshgfdjdsjfg" & vbCr
Set objWord = CreateObject("Word.Application")
objWord.Visible = True
Set objDoc = objWord.Documents.Add
objDoc.Range.Text = txtWord
Set objRange = objDoc.Range
objRange.Collapse Direction:=wdCollapseEnd
intRows = 8: intCols = 5
Set objTable = objDoc.Tables.Add(objRange, intRows, intCols)
objTable.Borders.Enable = True
End Sub
Also not sure why you remove the objWord but don't save or close the Word doc, nor remove the other objects you created along the way.