如何从CPAN安装脚本分发？

I tried:

cpan> i /xls2csv/
No objects found of any type for argument /xls2csv/

cpan> install xls2csv
Warning: Cannot install xls2csv, don't know what it is.
Try the command

i /xls2csv/

to find objects with matching identifiers.
cpan> i /xls2csv/
No objects found o