Have you tried?
I am not sure where the limit is but I would not think 80,000 is to much. It seems to me that I have imported upwards of 200,000, kind of slow but it will do it.
Just go to tables/new and select import.
Sometimes a link table is a better option, just depends on what your needs are. With a link the data is dynamic, whenever the source data changes the link table will be current. But links are a pain in the ass and have a lot of limitations. They do have their uses though and I have used them often to mine data from various text files.