【實用工具app】Change File Extension 4dir Pro|最夯免費app

Change file ext. for all files in a dir at once.

You can zip files to your device internal storage.

then zip your internal storage.

We are working on copying files to internal storage.

So that you can transmit with bluetooth.

eg change all text files (.txt) to (.jpg)

after bluetooth transmit,

change them back: (.jpg) to (.txt)

It supports all kinds of file formats

You can add as many file type as you can.

.mp3 .zip ....

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