Selection.LtrRun Method (Word)
Sets the reading order and alignment of the specified run to left-to-right.
For the specified run, this method sets the reading order to left-to-right. If a paragraph in the run with a right-to-left reading order is also right-aligned, this method reverses its reading order and sets its paragraph alignment to left-aligned.
Use the ReadingOrder property to change the reading order without affecting paragraph alignment.