I can recommend Gnumeric.
Gnumeric is an open-source spreadsheet program. Gnumeric is...

• Free: Gnumeric and its source code are available free of charge, licensed under the terms of the GNU General Public License version 2 or version 3.
• Fast: Gnumeric starts up quickly and handles large spreadsheets while remaining responsive.
• Accurate: A spreadsheet should calculate the right answer. Gnumeric's built-in functions and tools are accurate, as several researchers have found.

To install:

sudo apt update 
sudo apt install gnumeric

You can also use this:

column -s, -t < somefile.csv | less -#2 -N -S

column is a standard unix program that is very convenient -- it finds the appropriate width of each column, and displays the text as a nicely formatted table.

Note: whenever you have empty fields, you need to put some kind of placeholder in it, otherwise the column gets merged with following columns. The following example demonstrates how to use sed to insert a placeholder:

$ cat data.csv
1,2,3,4,5
1,,,,5
$ sed 's/,,/, ,/g;s/,,/, ,/g' data.csv | column -s, -t
1  2  3  4  5
1           5
$ cat data.csv
1,2,3,4,5
1,,,,5
$ column -s, -t < data.csv
1  2  3  4  5
1  5
$ sed 's/,,/, ,/g;s/,,/, ,/g' data.csv | column -s, -t
1  2  3  4  5
1           5

Note that the substitution of ,, for , , is done twice. If you do it only once, 1,,,4 will become 1, ,,4 since the second comma is matched already.