Windows 10: Show or hide file extensions

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Problem

  • How to show or to hide file name extensions in Windows 10?
  • Typical file extensions .exe .doc .docx .xlsx .jpg .png .avi

Solution

  • Click the Windows Button
  • Type "Folder Options" into the search box
  • Click the search result "Folder Options"

Open Folder Options in Windows 10

  • In the Tab "View" you will see the option:
Hide extensions for known file types

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