How to Export X Coordinates or Y Coordinates only to notepad with Space Seperator

Dear all My Friends,

Please guide me and provide a code for Exporting X coordinates only to Notepad with space separator or comma separator only. and i need Exporting Y coordinates only to Notepad with space separator for selected objects. sorry for my poor English.so kindly suggest and provide Auto lisp as soon as possible.

example of X coordinates in note pad is= 0 2 3.5 6 8.2 10 13 14 17
example of Y coordinates in note pad is= 0 1.5 3.2 4 6.3 9 12.5 19

thank you for Supporting.

if coordinates you want to export are block or point "insert point" you can use AutoCAD command _dataextraction, under menu Tools.
It will create an excel file. You can now SaveAs it in excel as comma delimited *.csv