# Exporting Data using CAN/CAN FD DBC File
This method exports only specific messages/signals from the RAW data using a DBC file.
The user will need to assign the DBC to the specific CAN Bus.
* Click on the ‘Internal Storage.’
The window below will open.
* Select the data logs and click on Download;
* Select the ‘Advanced’ option and open the ‘Export data’ window below.
* Choose the output format (.mf4/.mat/.csv).
Choose the time format (Only applicable for .csv format).
The user can choose the ‘Merge’ option if multiple data logs are to be exported.
Specify the output location for saving the exported data.
* Click on the ‘load DBC file’ icon.
* Drag and drop the required DBC messages/signals to the corresponding bus.
{% hint style="info" %}
#### Notes:
* ReXdesk supports PGN-based export when J1939 DBC is imported.
{% endhint %}
* Click ‘Process’.
ReXdesk will process the RAW data and save the decoded data to the location specified in the first step.
[Video Tutorial](https://youtu.be/fjfFDkSEtW0?si=PRHNzhWdGQ_oTT2x)
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