Sample data would have been welcome. See How do I post a question effectively?.

Either your columns are separated by some given delimiter (eg: comma), in which case you can use Text::CSV, or your columns are aligned on a given position, in which case unpack can do the trick (although there might be a module that does it better)

use Data::Dump qw(pp);
pp unpack "A5 A6 A2 A*", "Hi   Hello World";
__DATA__
("Hi", "Hello", "Wo", "rld")
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