How to Change File Extension (Type) on Android
Changing file extensions on Android ensures proper app compatibility and prevents errors when opening or sharing files
Ever downloaded a file on your Android and thought, “Why won’t this open?” Maybe it's a document that refuses to launch or a video your phone can't seem to recognize. Most times, the culprit isn’t the file itself—it’s the file extension. That tiny bit at the end of a file name, like .pdf
, .docx
, or .zip
, tells your phone how to handle it.
The good news? You can change it yourself. Whether you're trying to convert a .txt
into a .html
, or make an audio file compatible with your favorite app, switching file types on Android is simple once you know how. Here’s your quick guide to doing it—no special apps or deep tech skills required.
How to Change File Extension (Type) on Android
Step 1: Open the Files app on your device

Step 2: Go to the file you want to rename. For instance I want to rename an iPhone image in Downloads


Step 3: Tap the three dots next to the filename and select Rename


Step 4: Replace the existing file extension with a new, compatible one and tap OK. For instance, I'll be changing .jpeg to .png


Step 5: Then tap Rename to confirm


Conclusion
Changing a file extension on Android might seem tricky at first, but it’s actually pretty straightforward once you know where to look. Whether you're fixing a file that won’t open or prepping it for a specific app, a quick rename can often do the trick. Just be sure you know what the new extension means—changing it doesn’t magically convert the file type. When in doubt, use a trusted file manager or converter app to help you out.
