Begin by logging into your Toggl account and navigate to the 'Reports' section. From there, create a report that includes all the data you wish to move to DuckDB. Once your report is ready, use the export feature to download the data in a CSV format, as this is a universally accepted format and compatible with DuckDB.

Open the exported CSV file in a spreadsheet application (e.g., Microsoft Excel or Google Sheets) to ensure the data is structured correctly and that there are no inconsistencies. Check for any missing values, incorrect data types, or formatting issues, and clean the data as necessary.

If you haven't already, install DuckDB on your system. You can download it from the official DuckDB website. Follow the installation instructions specific to your operating system (Windows, macOS, or Linux) to set it up.

Launch DuckDB and create a new database where you will import your Toggl data. You can create a database by executing the following command in the DuckDB shell or your preferred SQL client:
```sql
CREATE DATABASE 'your_database_name.duckdb';
```

Before importing the data, define a table schema in DuckDB that matches the structure of your CSV file. Use the `CREATE TABLE` SQL statement to specify the table name and column definitions, ensuring that data types align with those in the CSV file:
```sql
CREATE TABLE toggl_data (
column1_name column1_type,
column2_name column2_type,
...
);
```

Use DuckDB's CSV import functionality to load your data. Execute the `COPY` command to read the CSV file into the newly created table:
```sql
COPY toggl_data FROM 'path/to/your/csvfile.csv' (AUTO_DETECT TRUE);
```
This command uses `AUTO_DETECT` to automatically determine the delimiter and quote character used in the CSV file.

Once the import process is complete, verify that the data has been correctly loaded into DuckDB. Run a few `SELECT` queries to check for data integrity and ensure that all records are present and accurately reflect the original Toggl export. This step ensures that the migration process was successful and your data is ready for use in DuckDB.