[Closed] spinner to control number of sections to export

Sorry if this is a redundant post but I could not find much about this particular issue:
I would like to use a loop to export a number of sections to individual.dwg files the number and z transform value of splines depending on the value of a spinner.
How do you instruct to create sections with increasing transform z values with a step = 1, then exporting a corresponding number of external files? Files should be named using a suffix but I have no idea how to do it with exportFile.
e.g. when the spinner value is set to 2 I would export 2 files (plan01 and plan02) with splines located at z=1 and z=2.

Thank you in advance for any help.

rollout a "DWG Extraction Assistant" width:168 height:100
(
	spinner spn1 range:[0,10,2] type:#integer
	label lbl1 "number of sections"
	button btn1 "export file(s)" width:120 height:24
	on btn1 pressed  do
	(
		for i = 1 to spn1.value do
		(
			s = section length:1000 width:1000 pos:[0,0,spn1.value] isSelected:on
			redrawViews()
			convertToSplineShape s
			select $section* -- select all sections
			exportFile ("C:\	emp\\plan.dwg") #noPrompt selectedOnly:True -- export selected objects to dwg file
		)
	)
)
createDialog a