You take a photo on your iPhone and email it to yourself. You try to open it on your Windows laptop, but the computer says it cannot display the file. You see a file extension you do not recognize: ...

Depending on how long you've been a Windows PC user, you may remember when videos distributed online came in various formats. Nowadays, with most of those formats having been made obsolete, this isn't ...

Jake Peterson is Lifehacker’s Tech Editor, and has been covering tech news and how-tos for nearly a decade. His team covers all things technology, including AI, smartphones, computers, game consoles, ...