Query, Visualize, and Share live Excel Online Data in Redash

Redash is a collaboration tool that lets you query, visualize, and share your data. When paired with CData Connect Cloud, Redash gets access to live Excel Online data. This article demonstrates how to connect to Excel Online using Connect Cloud and work with live Excel Online data in Redash.

CData Connect Cloud provides a pure SQL Server interface for Excel Online, allowing you to query data from Excel Online without replicating the data to a natively supported database. Using optimized data processing out of the box, CData Connect Cloud pushes all supported SQL operations (filters, JOINs, etc.) directly to Excel Online, leveraging server-side processing to return the requested Excel Online data quickly.

Configure Excel Online Connectivity for Redash

Connectivity to Excel Online from Redash is made possible through CData Connect Cloud. To work with Excel Online data in Redash, we start by creating and configuring a Excel Online connection.

1. Log into Connect Cloud, click Sources, and then click Add Connection

2. Select "Excel Online" from the Add Connection panel

3. Enter the necessary authentication properties to connect to Excel Online.

   You can connect to a workbook by providing authentication to Excel Online and then setting the following properties:

   • Workbook: Set this to the name or Id of the workbook.

     If you want to view a list of information about the available workbooks, execute a query to the Workbooks view after you authenticate.

   • UseSandbox: Set this to true if you are connecting to a workbook in a sandbox account. Otherwise, leave this blank to connect to a production account.

   You use the OAuth authentication standard to authenticate to Excel Online. See the Getting Started section in the help documentation for a guide. Getting Started also guides you through executing SQL to worksheets and ranges.

   
4. Click Create & Test
5. Navigate to the Permissions tab in the Add Excel Online Connection page and update the User-based permissions.

Add a Personal Access Token

When connecting to Connect Cloud through the REST API, the OData API, or the Virtual SQL Server, a Personal Access Token (PAT) is used to authenticate the connection to Connect Cloud. It is best practice to create a separate PAT for each service to maintain granularity of access.

1. Click on the Gear icon () at the top right of the Connect Cloud app to open the settings page.
2. On the Settings page, go to the Access Tokens section and click Create PAT.
3. Give the PAT a name and click Create.
4. The personal access token is only visible at creation, so be sure to copy it and store it securely for future use.

With the connection configured and a PAT generated, you are ready to connect to Excel Online data from Redash.

Connect to Excel Online from Redash using Connect Cloud

To establish a connection from Redash to CData Connect Cloud using the Virtual SQL Server, follow these steps:

1. Log into Redash.
2. Click the settings widget on the top right.
3. Click New Data Source.
4. Select Microsoft SQL Server as the Data Source Type.
5. On the configuration tab, set the following properties:
   • Database Name: enter the Connection Name of the CData Connect Cloud data source you want to connect to (for example, Salesforce1).
   • Server: enter the virtual SQL Server host name (tds.cdata.com)
   • User: enter your CData Connect Cloud username. This is displayed in the top-right corner of the CData Connect Cloud interface. For example, [email protected].
   • Password: enter the PAT you generated on the Settings page.
   • Port: enter 14333
   
6. Click Create.
7. Click Test Connection to ensure that the connection is configured properly.

You can now work with live Excel Online data in Redash.

Get CData Connect Cloud

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