# Creating a Data Warehousing Project
In this article, we will talk about how data warehousing projects work in Astera Data Stack. We’ll cover the following topics:
1\. Opening a New Data Warehousing Project
2\. Opening a Pre-Existing Data Warehousing Project
3\. Adding Items to a Data Warehousing Project
Let’s explore each one by one.
### Opening a New Data Warehousing Project
There are two ways to open a data warehousing project in Astera Data Stack. Let’s discuss each one by one.
1\. Go to the main menu bar *> Project > New > Data Warehousing Project*.
2\. Or, you can use the following keyboard shortcut to open a new project.
* Once you open a new project, you will be required to save the project on a location of your choice. Specify the *File Name* and click *Save*.
{% hint style="info" %}
**Note:** Save the project in a new folder.
{% endhint %}
* Once the project is saved, it will open in Astera Data Stack in a *Project Explorer* window on the right-hand side of the designer.
* You can now add project items to the project, such as *Data Models, Dataflows, Schedules, Shared Connections* and *Workflows*.
### Opening a Pre-Existing Data Warehousing Project
To open a pre-existing project, go to the main menu bar > *Project > Open*. Your local file directory would open in a new windowpane. Provide the path where the project exists in the *File Name* and click on *Open*.
The project will open in the *Project Explorer* on the right-hand side of the designer.
Now you can open project items such as *Data Models, Dataflows, Schedules, Shared Connections* and *Workflows* that exist in the project.
* To open a project item, expand the item node and select the item that you want to open.
*Example*: To open an existing data model from the project, expand the *Data Model* node and select the data model you want to open.
### Adding Items to a Data Warehousing Project
You can add different new or existing items in the project, including *Data Models, Dataflows, Schedules, Shared Connections* and *Workflows*.
Let’s look at an example where we will add a new data model to a data warehousing project.
* Go to *Project Explorer > Project File > Data Models* and right click on it, a context menu would open.
* Here, there are two ways to add a new data model:
1. Select *Add New Data Model* and a new data model designer would open. It would also show under the *Data Models* folder in the project explorer.
2. Select *Add New Item*. A new window will open with all the items. Select *DataModel*, specify its *Name*, and click *Add*.
* To add an existing data model to the project, select *Add Existing Items*.
A window would open where you can provide the path to the existing data model and add it to the project by clicking *Open*.
You can follow the same steps to add all the other items in a data warehousing project, including *Dataflows, Schedules, Shared Connections* and *Workflows*.
This concludes our discussion on creating a data warehousing project in Astera Data Stack.
