Warning, /education/labplot/tests/import_export/ASCII/data/quoted_strings_with_header.txt is written in an unsupported language. File is not indexed. 

0001 "col1", "col2", "col3", "col4"
0002 "a", "1000", "201811", "1.1"
0003 "ab", "2000", "201812", "1.2"
0004 "abc", "3000", "201901", "1.3"