# Downloading recordings Data recorded onto the microSD card is encrypted for privacy reasons and can be decrypted using [Cortex](https://www.emotiv.com/developer/), outlined below. You can download the recordings onto your computer by connecting Extender to your computer with the SD card in the slot. Or equally you can copy the files off using an external card reader. Each time a recording is made a new time stamped folder is created and consecutive files are filled to keep each from getting too large. The instructions under [USB drive mode](/extender-manual/modes-of-operation/usb-drive-mode.md) explains how to get access to the recordings on the SD card. You can copy these files onto your computer. The next section outlines the decryption of recordings, this is done using Cortex. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://emotiv.gitbook.io/extender-manual/post-processing/decrypting-data.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.