While importing a CSV file, PHPLIST may give the warning
“Warning: Record has more values than header indicated (4!=3), this may cause trouble”
This is often caused by specifying a wrong Delimiter. When you import a file, PHPLIST assumes that you are using TAB as a delimiter. If you use an Excel CSV file, the field delimiter is actually a coma.
While imoprting the file, look for the field called “Field Delimiter” in PHPLIST import screen. Sepecify a comma there and it will solve the problem when you are importing a CSV file