2. Show or Hide File Extensions File extensions are a key way of revealing the types of files displayed in File Explorer. A file with a .DOCX extension is a Word document. If it has a .JPG extension, ...

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Robin Hartill is a Florida-based Certified Financial Planner and a longtime financial editor and writer. Her work regularly appears on The Motley Fool, Yahoo! Finance and Nerdwallet. Previously, she ...