How do I import a tasks.csv file from outlook into em?

I have an old desktop with outlook and i just bought a win 7 laptop without outlook.I transferred all my contacts as csv files to the laptop. But I have lots of tasks that I’d like to transfer but the import function tells me that it worked but my imported tasks do not show up.
Can someone please explain how I can get that process to work?

what version of outlook do you want to import from?
It worked at me as Import selected folders and import of Outlook Data File->Tasks folder.

how to import tasks from a csv file, not necessarily outlook.