Open Text File Into Worksheet & Save As .xls

I have a folder that has a bunch of text files in it with numeric names (they are store numbers 2, 3, 165, 188, etc...). I need to open those files (in excel), run a macro on them (this portion of the macro has already been created), and then save them with the same name as the txt file but in an xls format and close. It would be great to have the whole folder process automatically but I am willing to start small. Further, I'd like it to not ask for a filename, and I don't want to see the SaveAs dialog box. So far I have been able to get the macro to run through the my processing of the text file all the way to the SaveAs portion, but the code in my macro opens the SaveAs box and puts the filename of the txt file in the file name box in quotes with the txt extension. Below is the code.

Sub Macro3()
sFile = Application. GetOpenFilename( _
fileFilter:="Text Files (*.txt), *.txt", FilterIndex:=1, _
Title:="Open Workbook")
Workbooks.OpenText Filename:= _
sFile, Origin:= _
xlWindows, StartRow:=1, DataType:=xlFixedWidth, FieldInfo:= Array(Array(0, _
1), Array(5, 1), Array(26, 1), Array(35, 1), Array(39, 1), Array(46, 1), Array(51, 1), Array _
(58, 1), Array(75, 1), Array(87, 1), Array(91, 1), Array(97, 1), Array(99, 1), Array(111, 1) _.....................