Yes, you can migrate an existing Delta Live Table (DLT) pipeline to an Asset Bundle without having to reprocess all historical files. Here are the steps to achieve this:

1. Create a Databricks Asset Bundle: Use the Databricks CLI to initialize a new bundle. This will create a databricks.yml file in the root of your project, which will be used to define your Databricks resources, including your DLT pipelines.

2. Define the DLT Pipeline in the Bundle: In the databricks.yml file, you will need to define your DLT pipeline. This involves specifying the pipeline's configuration, such as the path to the notebook or script that defines the pipeline logic.

3. Deploy the Bundle: Use the Databricks CLI to deploy the bundle to your target environment. This will create the necessary resources in your Databricks workspace based on the definitions in the databricks.yml file.

4. Run the Pipeline: Once the bundle is deployed, you can run the DLT pipeline from the Databricks extension panel or using the CLI. This will start the pipeline without reprocessing all historical files, as the pipeline will continue from its last processed state.