Open Air File Mac

  1. Open File Macbook Air
  2. Open Rar File On Macbook Air
  1. RAR is a proprietary archive format, so you need third-party software to open and extract it on your Mac. In this post, we show you our favorite software to use for this, as well as some alternative ways to open.rar files in macOS.
  2. It's at the top of your Mac's screen. A drop-down menu will appear. In some cases, you may also be able to double-click the RAR file to open it in Unarchiver. This may not work if you have multiple apps which can open RAR files on your Mac.

Adobe AIR for Mac default file extension associations The most common file format used with the specific file extension.air file extension is used for Adobe AIR rich Internet applications. Other file extensions or file formats developed for use with Adobe AIR for Common file extensions used by Adobe AIR. Secondary click on a zip file, and select Get Info. Then find the Open With pane, select Open With Archive, and set check box to change all so that in the future, all zip files will automatically open with the Archive utility. In case you need to find the App, it is located in system/library/Core Services/Archive

Transferring files between computers or even between your Mac and an iOS device like an iPhone or iPad is easy. There are lots of different options, including Dropbox, OneDrive, email, and Apple’s own iCloud Drive.

However, perhaps the simplest method of all is AirDrop. This feature of macOS and iOS allows you to send files directly from a Mac or iOS device to another one, without having to place it on an intermediate server first.

What is AirDrop?

AirDrop was first introduced with Mac OS X Lion and allowed Mac users to share files with other from the Finder, and without copying them to a server or cloud storage service first, as long as they were physically close to each other. Since iOS 7, it has also been possible to share files between Macs and iOS devices using AirDrop.

Can I use AirDrop on my MacBook?

Open Air File Mac

As long as your Mac is running at least Mac OS X Lion, you can use AirDrop to share files with other Macs, whether it’s a MacBook or any other Mac. If it’s running Yosemite or later, you’ll be able to share with iOS devices too. One easy way to check if your Mac can use AirDrop is to click on the Finder icon in the menu and choose the Go menu. If you see AirDrop listed as an option, you’re good to go.

How to use AirDrop

There are a couple of things you should do before you start:

  • Make sure the devices you want to share files between are within 30 feet of each other.
  • Check the Firewall settings on both Macs (if you’re sharing files with another Mac).

Here's how to do that:

  1. Go to the Apple menu and select System Preferences.
  2. Choose the Security & Privacy tab.
  3. Click the Firewall tab, then the padlock, then type in your password.
  4. Press Firewall Options and on the next screen, make sure Block all incoming connections at the top of the window is not checked.

It’s not essential for both devices to be connected to the same iCloud account — AirDrop is designed to allow you to share files with other users as well as other devices you own. However, if the device you want to share files with is connected to a different iCloud account, the owner of the device will have to accept the incoming connection before the file can be transferred.

Now that you’ve set it up, the next step is to make sure both devices are connected to Wi-Fi and Bluetooth is switched on.

  1. On your Mac, go to the menu bar and, if Wi-Fi is off or not connected, click on the Wi-Fi icon and choose a network.
  2. Go to System Preferences, choose the Bluetooth pane and, if Bluetooth is off, press Turn Bluetooth On.
  3. If you want to share files with an iOS device, go to the Settings app on that device and make sure Wi-Fi is connected and Bluetooth is switched on.

With that done, it’s time to configure AirDrop.

How to turn on AirDrop on Mac and iOS

  1. On your Mac, click on the Finder icon in the Dock and go to the Go menu, then click AirDrop.
  2. At the bottom of the window that opens, click on “Allow me to be discovered by:” and choose Contacts only or Everyone.
  3. On the iPhone or iPad you want to share files with, go to Settings>General>AirDrop and choose Contacts only or Everyone.

You’re now ready to share your first file using AirDrop!

How to AirDrop from Mac to iPhone

  1. Go to the Finder and open a new window.
  2. Click on AirDrop in the sidebar of the window.
  3. You should see your iPhone in the window — it’s displayed using the name of the AppleID it’s connected to. If there is more than one device with AirDrop turned on, you’ll see them all.
  4. Open another Finder window and drag the file you want to transfer from its folder onto the icon of the iPhone you want to share it with.
  5. Drop it onto the icon.
  6. On the iPhone, you should see a menu appear asking which app you want to use to open the file. Tap the app you want to use.
  7. The files will now open in that app.

You can also share files using AirDrop via the Share menu in any macOS app that support it. Just click on the Share button, choose AirDrop, then select your iPhone.

How to AirDrop from iPhone to Mac

  1. Open an app on your iPhone that supports the Share feature.
  2. Open the document you want to send to your Mac.
  3. Tap the Share button.
  4. You’ll see a list of options, and above them, AirDrop with your Mac and any other devices in the vicinity.
  5. Tap your Mac.
  6. The file will be sent to your Mac.
  7. On your Mac, when the notification is displayed, click Open it to open the file.

If you don’t want to open the file, it will be saved to your Downloads folder.

What to do if AirDrop doesn’t work on your Mac

If AirDrop doesn’t work, try switching Wi-Fi and Bluetooth off and then on again. If that doesn’t work, try restarting your Mac. If you still can’t get AirDrop to work, we recommend trying CleanMyMac X maintenance scripts. They may fix the problem.

  1. Download CleanMyMac for free here.
  2. Launch the app.
  3. Click on Maintenance in the Utilities section.
  4. Check the boxes next to Run Maintenance Scripts and Verify Disk Permissions.
  5. Press Run.

Once CleanMyMac has finished, try AirDrop again.

Using AirDrop to transfer files between Macs or from Mac to iOS device is very convenient and very easy. The only thing to remember is that the devices both need to be connected to Wi-Fi and Bluetooth and need to be within around 30 feet of each other. You can then send files back and forth whenever you need to.

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This technote addresses the installation issue of Adobe AIR applications after 30th Oct 2017 that is signed with SHA1 certificate. It is applicable to both Windows and Mac.


When you install your AIR application, the installation fails with the below error. The error dialog is a generic installation failure message that could occur for various reasons. One of them is due to signature validation failure.

Who should use this solution?

If your developed AIR application fails to install after 30th Oct 2017.

Issue confirmation

Follow the steps below to verify if the signature validation failure is the cause of the installation failure:

  1. Open the application installation logs. The location of the log files for different platforms is mentioned in the article:
  2. If the installation log contains the error: “Package signature validation failed”, it indicates that the application is signed with SHA1 certificate.
  3. Set your system date to a date prior to 30th Oct 2017, and try to install the application again. Successful installation confirms that your application is impacted by the signature validation issue.


You will have to re-sign your Adobe AIR application. Follow the steps below to re-sign your application:

  1. Rename your Adobe AIR application by changing its extension from .air to .zip. In case you don’t see the extension in the filename, enable the filename extension before renaming the application.
  2. Extract the .zip file renamed in Step 1.
  3. Go to the extracted folder and perform the following modifications (in the order specified):
    1. Move xml present inside META-INFAIR folder to the root of the extracted folder.
    2. Delete “META-INF” folder.
    3. Delete “mimetype” file located in the root of the extracted folder.
  4. Download the latest AIR SDK for your platform from
  5. Locate the AIR SDK archive file downloaded in Step 4 and extract the AIR SDK Compiler (if on Windows) or mount the AIR SDK Compiler dmg (if on Mac).
  6. Open the command prompt and change the current working directory to the root directory of the extracted AIR application directory.
  7. Use the command below to re-package the AIR application with a new certificate:

<AIR_SDK_compiler_path>binadt -package -storetype pkcs12 -keystore <app_signing_certficate_path> myApp.air application.xml .

Command line parameters:

  1. AIR_SDK_compiler_path – Location of AIR SDK compiler extracted or mounted in Step 5.
  2. app_signing_certficate_path – Fully qualified path of your application signing certificate. Make sure you are using SHA256 certificate.
  3. myApp.air – Name of the application to be packaged.
  4. application.xml – The file that was moved in Step 3.A

When prompted, enter the password of your application signing certificate.

Do not ignore the . (dot) at the end of the packaging command above. It is used to package all the resources present in your existing application. For more details on packaging AIR applications, refer


AIR applications with the above-mentioned issue can be installed using two methods.

Using keyboard shortcuts:

Install the Adobe AIR Runtime

Steps to follow on Windows:

1. Go to C:Program Files (x86)Common FilesAdobe AIRVersions1.0

2. While holding the “Ctrl” key, select the Adobe AIR Application Installer.exe -> Right click on it -> Run as Administrator. Do not take your finger off the “ctrl” key until you see the window open up.

3. Select and open the AIR application to be installed.

Steps to follow on Mac:
Open air file mac download

1. Go to /Applications/Utilities

2. While holding the “command” key, double click on the Adobe AIR Application Installer. Do not take your finger off the “command” key until you see the window open up.

3. Select and open the AIR application to be installed.

The Adobe AIR Application should be installed successfully.

Using the new -ignoreExpiredCertificateTimestamp directive while launching AIR Application installer using Command Prompt/Terminal

Install the Adobe AIR Runtime

Steps to follow on Windows:

1. Open a command prompt as Administrator.

2. Run the following command:

“C:Program Files (x86)Common FilesAdobe AIRVersions1.0Adobe AIR Application Installer.exe” – ignoreExpiredCertificateTimestamp

3. Window opens up.

4. Select and open the AIR application to be installed.

Steps to follow on Mac:

1. Open Terminal.

2. Run the following command:

Open File Macbook Air

/Applications/Utilities/Adobe AIR Application AIR Application Installer/ -ignoreExpiredCertificateTimestamp

3. Window opens up.

4. Select the AIR application to be installed. Acp51usz drivers for mac.

Open Rar File On Macbook Air

Adobe AIR Applications gets installed successfully.