Is there already and out of the box way to create objects in alfresco using a csv file data or from anyother source? I've seen something but it seems its only for importing user objects not for other types of obejcts.
Honestly, depending on what you are doing, it might be easier just to write a script. For example, I really like to use Python for this purpose, but you could also use Java, Groovy, PHP, or .NET. Those languages all have corresponding CMIS clients available at Apache Chemistry that can be leveraged for that purpose.