Spreadsheet::ParseXLSX has Crypt::Mode::CBC as a dependency. IIRC the defaults for cpan are to follow dependencies, if you've altered this:
cpan> o conf prerequisites_policy 'follow'
cpan> o conf build_requires_install_policy yes
cpan> o conf commit
cpanm is a better, faster installer IMHO. If you are using the system perl consider yum could install perl-Spreadsheet-ParseExcel.
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