Because compressed files or zipped folders are a Windows function, Mac computers can’t read the folder (as it appears as a text document).  The steps below may require an additional decompression/unzip app or program to unzip or extract the folder. We recommend downloading the mp3 audio or audiobook folder and files on a desktop/laptop computer, extracting/unzipping the folder/files, and then using a Media Player on the computer to listen or move the unzipped mp3 audiobook folder and files to iTunes, designate it an audiobook in iTunes and sync up your Apple devices (iPod, iPad, tablet, etc…) with iTunes on the computer.  Since iTunes is the most popular format, prompts on how to add the file to your library appear below:
 
Step One: To access your download, sign in to DeseretBook.com. After you are logged in tap or click on “My Account” at the top right. Tap or click “Order History” on the left and then tap or click the "Order Details" for your mp3 audio files, and you will see your download listed. 

Step Two: Click on the Download button for the .zip file containing your mp3 files to begin instantly downloading to your Downloads folder. Alternatively, you can right-click the download button and a pop up window of options will appear. You will want to select the option “Save Target As…” or “Save Link As…”. Once you select this, the download window will appear asking where you would like to save the file. We recommend saving the file to your desktop. That way you can move it to the appropriate media player you use
 
Step Three:
To extract/unzip the folder, you will need to use a decompression/unzip app or program on your Mac. Right-click the .zip folder and then select the following prompts –>Open with –> Applications –> "the name of your decompression/unzip app or program" on your Mac. It should extract the files into a regular looking folder that we can move to iTunes. If your Mac does not have a decompression/unzip app or program yet here are a couple to choose from to install on your Mac:

RAR Extractor:
https://itunes.apple.com/us/app/rar-extractor-free/id646295438?mt=12

iZip for Mac:
http://www.izip.com
 

Step Four:
Adding the folder to iTunes - Begin by opening the iTunes music player to the Music Albums view and use the following prompts at the top-left corner. Start by selecting 'File' from the upper left-hand corner.  Click on the option to 'Add Folder to Library.'  A pop up window will then appear asking you to locate the folder that you would like to add. iTunes will then add the MP3 folder to your iTunes library. After putting it where you would like it in your iTunes library sync up your Apple devices.

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