Apple apps such as QuickTime Player, Photos, and Keynote work with many kinds of audio and video formats. Some apps prefer specific formats, but QuickTime movie files (.mov), most MPEG files (.mp4, .m4v, .m4a, .mp3, .mpg), some AVI and WAV files, and many other formats usually work in most apps without additional software.
Older or specialized media formats might not work in your app, because the format requires software designed to support it. If that happens, your app won't open the file or won't play back its audio or video.
How to search for an app that works with your file
WhatsApp for Mac is finally available and now it’s easy to run WhatsApp on Mac for free including on Yosemite and El Capitan. On May 11th 2016, WhatsApp released the long awaited desktop client for Mac and although you could already use the web version of WhatsApp, the desktop app is better because it has more support for desktop notifications and better keyboard shortcuts. Open the App store. Search for Zoom. Tap the cloud next to ZOOM Cloud Meetings to download it. Once it's finished downloading, Zoom will appear in your apps. Confirm that the camera is working in other iOS apps, such as the Camera app. If it works in other apps, contact Zoom support. If it does not work in any app, contact Apple support. I can log into meetings but then neither my audio nor my video works while I'm in a meeting. My camera doesn't turn on and no one can hear me talk, which basically defeats the purpose of this entire program. It used to; but now I get no functionality for anything but chat, including when I log in and try to attend a meeting via a web browser.
You might already have an app that supports the format of your file. If you don't know which of your installed apps to try, your Mac might be able to suggest one:
- Control-click (or right-click) the file in the Finder.
- From the shortcut menu that opens, choose Open With. You should see a submenu listing all of the other installed apps that your Mac thinks might be able to open the file.
If none of your installed apps can open the file, search the Internet or Mac App Store for apps that can play or convert the file:
- Include the name of the media format in your search. To find the format, select the file and press Command-I to open an Info window. The format might appear after the label Kind, such as ”Kind: Matroska Video File.”
- Include the filename extension in your search. The extension is the letters shown at the end of the file's name, such as .avi,.wmv, or .mkv.
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- QuickTime Player (version 10.0 and later) in OS X Mavericks through macOS Mojave converts legacy media files that use certain older or third-party compression formats.
- Learn about incompatible media in Final Cut Pro X and iMovie.