Every genealogical software has its own setup and process for importing and exporting.


Most of the time, you have a button "Export my Tree" that allows you to choose the GEDCOM format and export the file.


On the following link you will have access to many tutorials to create your GEDCOM file on the software you use:

http://fr.geneawiki.com/index.php/Tutoriels_de_cr%C3%A9ation_de_fichiers_GEDCOM