Show and change file extension on iPhone iPad

A full name of a file consists of its name and extension. File extension is a very important part of the file name. Sometimes without the file extension you have no idea what the file is. It is not easy to show file extensions on iOS devices. There are several file manager apps to display filename extensions. In this article, I’ll show you how to view file extension using the native Files app which is shipped with iOS 11 and later. I will also share with you a third-party file manager for iOS which allows us to display and edit file extension on iPhone iPad. For example, you can use it to change .png to .jpg extension.

View file extension in Files app on iPhone

Firstly you can make use of the share feature to save the file to the Files app if not yet. Once a file being added to Files app, long press on the file until its file name disappears, then release your finger, you will then see a menu bar pops up with options such as Copy, Duplicate, Rename, Move, Delete, Share, Tag, Info. Use the left or right arrow to find more options. Choose Info from the menu, the file details will be displayed in a full screen like below.

view file info in files app on iphone

From the file info screen, you can find the full file name with extension, file type, size, storage location, created date and time, modified date and time, tags, etc.

Change file extension on iPhone

The stock Files app on iPhone can help us view file extension, it however does not allow us to edit file extensions. You need to download third-party file manager app for this. File Master is a great one. It is free and powerful. Find out more details about this file manager for iPhone here.

Download this free file manager app onto your iPhone. Use the share feature to copy the file from its original app to the File Master app. Long press on the file in the file manager app to show the context menu and choose Rename, you can then change the file name and/or its file extension. See below figure.

rename files in filemaster app on iphone

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