Creating table populated daily from CSV file

I’m relatively new to WordPress and to TablePress so please forgive me if I sound like a newbie because I am. And I’m old so it takes me a few tries before I figure things out.
I’m trying to design a 3×16 table (some cells merged, some cells text) that is populated with data from a .CSV file when the page it’s on is loaded. The .CSV file has 365 rows (days of the year – 366 for leap year) where the first column is the date followed by 15 entries in each row. When the table is created I need code to search the .CSV file’s first column (Dates) for today’s date and populate the appropriate cells with the corresponding entries from that row for that date.
I’m not asking for a solution, but will gladly take one if someone has already created something similar. I’m asking if anyone can please direct me to some comprehensive tutorials or documents that explain the process and coding required.
Cheers.