Update README.md

README.md

@@ -33,6 +33,35 @@ If you are interested in obtaining access to the complete Wi6CSI dataset or have
 - **.csi files:**  
   These files hold raw Wi-Fi CSI data. They are not immediately usable and must be parsed using the [picoscenes toolbox](https://ps.zpj.io/matlab.html) to extract the relevant features for analysis.
 
+## How to View and Process Each File Type
+
+### 1. `.mp4` Files
+- **Description:**  
+  These files contain Pose3D videos.
+- **How to View:**  
+  Open them in any standard media player (e.g., VLC, Windows Media Player, QuickTime) by double-clicking the file or dragging it into the player window.
+
+### 2. `.csi` Files
+- **Description:**  
+  These files store raw Wi-Fi CSI data.
+- **How to Open/Parse:**
+  - **Step 1:** Install the PicoScenes MATLAB Toolbox.
+  - **Step 2:** Open MATLAB and navigate to the directory containing the `.csi` file.
+  - **Step 3:** Load or parse the file using the toolbox’s function. Found under the PicoScenes-MATLAB-Toolbox-Core folder
+  - **Step 4:** The raw CSI values can then be accessed within the returned data structure for further analysis.
+
+### 3. `.mat` Files
+- **Description:**  
+  These files contain Wi-Fi CSI values in MATLAB’s native format.
+- **How to View:**
+  - **Option 1:** In MATLAB, double-click the `.mat` file in the Current Folder panel.
+  - **Option 2:** Programmatically load the file by running. For example:
+    ```matlab
+    load('A12_P5_L3_T1.mat');
+    ```
+    After loading, variables such as `data` (often containing a field like `data.CSI.CSI`) will appear in your MATLAB workspace for exploration.
+    The data.CSI.CSI will then contain all raw complex CSI values.
+
 ## Single User Activity Recognition Structure
 | Activity                        |
 |---------------------------------|