filedecoder

noun
UK /ˈfaɪl.dɪˌkəʊ.də/
US /ˈfaɪl.dɪˌkoʊ.dɚ/

A tool that turns a computer file into something you can read or use.

I used a filedecoder to open the strange file my friend sent me.


OTHER MEANINGS

2. A program that changes secret or scrambled file data back into normal form.

The filedecoder unscrambled the protected document.

3. A device or app that reads a special file type and shows its contents.

This filedecoder can display old photo files.

4. A part of a system that translates stored data into a usable format.

The filedecoder turned the raw data into a clear report.