diff --git a/open_access/biq_query.md b/open_access/biq_query.md
index dcc29a7e..6586501f 100644
--- a/open_access/biq_query.md
+++ b/open_access/biq_query.md
@@ -1,5 +1,5 @@
---
-order: 993
+order: 992
---
# Google BigQuery
diff --git a/open_access/cds_gen3.md b/open_access/cds_gen3.md
new file mode 100644
index 00000000..6eb7c83b
--- /dev/null
+++ b/open_access/cds_gen3.md
@@ -0,0 +1,77 @@
+---
+order: 993
+---
+
+HTAN files avaliable througn the NCI CRDC Cancer Data Service can be downloaded in the terminal using the gen3 commend line client.
+
+## Video walkthrough
+
+
+
+## Step-by-step guide
+
+
+
+### Step 1: Set Up Your Environment
+
+- Open your terminal and create a clean Conda environment (or environment of your choice) with Python 3.11.
+*Note: Python 3.12 is not compatible with the current version of the Gen3 client.*
+
+ ```
+ conda create -n gen3_env python=3.11
+ conda activate gen3_env
+ ```
+
+- Install the Gen3 client by running:
+
+ ```
+ pip install gen3
+ ```
+
+3. Verify the Gen3 client installation:
+
+ ```
+ gen3 --help
+ ```
+If help options are displayed, the installation was successful.
+
+### Step 2: Obtain and Configure API Credentials
+
+- Log in to the NCI Commons Framework at [nci-crdc.datacommons.io](https://nci-crdc.datacommons.io).
+- Go to your profile settings, create a new API key, and download the credentials.json file.
+- In the terminal, create the `.gen3` directory in your home folder if it doesn’t alreadyexist:-
+ ```
+ mkdir ~/.gen3
+ ```
+
+- Move the credentials.json file to the `~/.gen3/` directory:
+
+ ```
+ mv path/to/credentials.json ~/.gen3/credentials.json
+ ```
+
+
+### Step 3: Select Files from the HTAN Data Portal
+
+- Go to the HTAN Data Portal and filter the files based on your criteria (e.g., open access CDS files).
+- Select the files you want to download
+
+### Step 4: Use the Gen3 Client to Download Files
+
+- Select the "Download files" link and view the the gen client command for your selected files.
+- Copy the Gen3 command and run it in your terminal. The command should look like this:
+
+ ```
+ gen3-client download-multiple --profile=nci-crdc --object-ids
+ ```
+
+- **Run the command.** This may take a moment. You might see a warning initially, which is typically harmless and does not impact the download process.
+- **Verify the Download.** Once the download completes, you should see the files in your directory. You’ll also receive a report showing successful downloads and any failed attempts (if any). For example:
+ ```
+ (gen3) ataylor@ajt-mbp gen3-test % gen3 --endpoint=nci-crdc.datacommons.io/ drs-pull objects dg.4DFC/6221caa8-7e68-11ee-a468-172bb8261521 dg.4DFC/621d8a38-7e68-11ee-82bd-ef84a2cd1f8d
+ [2024-11-01 13:52:21,391][WARNING] Unable to process WTS response. Likely no WTS service running on this commons. Certain commands might fail.
+ {"succeeded": ["dg.4DFC/6221caa8-7e68-11ee-a468-172bb8261521", "dg.4DFC/621d8a38-7e68-11ee-82bd-ef84a2cd1f8d"], "failed": []}
+
+ (gen3) ataylor@ajt-mbp gen3-test % ls
+ MIBITIFF_MBC_Point17_combined.ome.tiff MIBITIFF_MBC_Point21_combined.ome.tiff
+ ```
\ No newline at end of file