What is a f4v file?

When I export my footage, Elements creates a f4v file, but when I click on it, Windows tells me that it cannot open it.

graverholt
You must be in Publish+Share/Computer/Adobe Flash Video. The F4v file extension is a wrapper format for a flash file.
What Open With are you trying to use for its playback? Please right click the .F4V file, select Open With, and then try the VLC Player, Mozilla Firefox (if it is your default browser), or QuickTime. Does the .F4V open for you with those programs?
ATR

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