the file contain a method of cryptography

[Content_Types].xml
_rels\.rels
ppt\slides\_rels\slide6.xml.rels
...\......\.....\slide5.xml.rels
...\......\.....\slide4.xml.rels
...\......\.....\slide3.xml.rels
...\......\.....\slide2.xml.rels
...\......\.....\slide1.xml.rels
...\......\.....\slide7.xml.rels
...\......\.....\slide8.xml.rels
...\......\.....\slide9.xml.rels
...\......\.....\slide14.xml.rels
...\......\.....\slide13.xml.rels
...\......\.....\slide12.xml.rels
...\......\.....\slide11.xml.rels
...\......\.....\slide10.xml.rels
...\_rels\presentation.xml.rels
...\presentation.xml
...\slides\slide1.xml
...\......\slide9.xml
...\......\slide11.xml
...\......\slide12.xml
...\......\slide13.xml
...\......\slide14.xml
...\......\slide8.xml
...\......\slide10.xml
...\......\slide6.xml
...\......\slide2.xml
...\......\slide7.xml
...\......\slide3.xml
...\......\slide5.xml
...\......\slide4.xml
...\.....Layouts\_rels\slideLayout2.xml.rels
...\............\.....\slideLayout5.xml.rels
...\............\.....\slideLayout3.xml.rels
...\............\.....\slideLayout6.xml.rels
...\............\.....\slideLayout4.xml.rels
...\notesSlides\_rels\notesSlide1.xml.rels
...\slideLayouts\_rels\slideLayout8.xml.rels
...\.....Masters\slideMaster1.xml
...\.....Layouts\_rels\slideLayout11.xml.rels
...\............\.....\slideLayout10.xml.rels
...\............\.....\slideLayout9.xml.rels
...\............\.....\slideLayout7.xml.rels
...\............\.....\slideLayout1.xml.rels
...\............\slideLayout1.xml
...\............\slideLayout10.xml
...\.....Masters\_rels\slideMaster1.xml.rels
...\.....Layouts\slideLayout8.xml
...\............\slideLayout7.xml
...\............\slideLayout6.xml
...\............\slideLayout5.xml
...\............\slideLayout4.xml
...\............\slideLayout3.xml
...\............\slideLayout2.xml
...\............\slideLayout11.xml
...\............\slideLayout9.xml
...\notesSlides\notesSlide1.xml
...\theme\theme2.xml
...\.....\_rels\theme1.xml.rels
...\.....\theme1.xml
...\notesMasters\notesMaster1.xml
...\media\image1.jpeg
...\notesMasters\_rels\notesMaster1.xml.rels
docProps\thumbnail.jpeg
ppt\media\image2.png
...\.....\image3.png
...\presProps.xml
...\viewProps.xml
...\tableStyles.xml
docProps\core.xml
........\app.xml

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