Tableau Public can't read csv files with too many rows? How to work around?

Hi,

I'm trying to import a very simple csv file with only two columns containing latitude and longitude information into Tableau Public and then plot them on the map. There are over 2 million rows in this file. When I tried to connect the whole file, Tableau couldn't read it. But when I split them into smaller files with 500,000 rows, it worked. Is there a size limit or entries limit for the data source in Tableau? If so, can I somehow import multiple partial data and then append them to each other in Tableau? The file I was trying to import is attached below. I'm working with Tableau Public version 2019.2.1 64-bit on a Mac. Please help! Many thanks!