Though I quite like davido's later suggestion of Data::QuickMemoPlus::Extract, I bring your attention to a general piece of naming advice from Writing Solid CPAN Modules, namely that Perl Best Practices, in the item "Use grammatical templates when forming identifiers", recommends a module naming template of:

Abstract_noun
Abstract_noun::Adjective
Abstract_noun::Adjective1::Adjective2
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package Disk;
package Disk::Audio;
package Disk::DVD;
package Disk::DVD::Rewritable
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Based on that advice -- since "extract" is a verb (not an adjective) -- perhaps extract should be a method name in module Data::QuickMemoPlus.

Update: Given that Extract is a verb (or could be a noun depending on context), Extractor a noun, and Extractable an adjective, you could play around with names like:

Data::Extractor::QuickMemoPlus
Data::Extractable::QuickMemoPlus
Data::QuickMemoPlus::Extractor
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