¡Bienvenido a los grupos de discusión!
Lo siento, mi Español no es suficiente para responder a una cuestión técnica; Inglés tendrá que hacer.
The numbered versions are backup files.
You can do a "Save As" and then select the Options button in the Save As dialog. In the File Save Options dialog, at the top, there is an edit box to set the maximum number of backup files. Set the number you want, select OK and then save the file (using the same name, unless you want to create a separate file). You should only get as many backup files as you specified.
David Koch
AutoCAD Architecture and Revit User
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