If you have an IPA file that is compressed using the ZIP format on your computer, you can decompress it and obtain the original IPA file. Apple’s iPod Touch, iPhone and iPad run the iOS operating system, and applications and games that run on these devices have the IPA extension. Someone may have compressed the IPA files that are backed up from your iOS device on your computer. If you have deleted these IPA files from your iOS device, and they are no longer available to download again from Apple’s iTunes Store, you’ll need to decompress them from the ZIP file before you can restore them back to your device using Apple’s iTunes application. Writer Bio
