Begin by exporting the data from Lokalise. Log into your Lokalise account and navigate to the project you want to export. Use the export feature to download the data in a suitable format, such as JSON or CSV, which can be easily handled and imported into MongoDB. Save the exported file to your local machine.

Ensure you have MongoDB installed on your system. Download and install the MongoDB Community Server from the official MongoDB website. Also, install MongoDB client tools like `mongo` shell or `MongoDB Compass` to interact with your databases. These tools will help you import the data into MongoDB.

With the exported file in JSON or CSV format, review the data structure to ensure compatibility with MongoDB. If necessary, clean or transform the data to match your MongoDB schema requirements. For JSON files, make sure each document is properly structured; for CSV files, prepare for conversion to a JSON-compatible format.

Open your MongoDB client and create a new database and collection where you will import the Lokalise data. You can do this using the `mongo` shell or MongoDB Compass by executing commands like:
```bash
use yourDatabaseName
db.createCollection('yourCollectionName')
```

If your exported data is in CSV format, convert it to JSON. This can be done using a script in Python or Node.js. For example, in Python, use the `pandas` library:
```python
import pandas as pd
data = pd.read_csv('yourfile.csv')
data.to_json('yourfile.json', orient='records')
```

Use the `mongoimport` tool to import the JSON file into MongoDB. Execute a command in your terminal like:
```bash
mongoimport --db yourDatabaseName --collection yourCollectionName --file yourfile.json --jsonArray
```
This command imports the JSON data into the specified MongoDB database and collection.

After importing the data, verify that the data has been correctly imported into MongoDB. Use the `mongo` shell or MongoDB Compass to query the collection and check the records. For example, in the `mongo` shell, execute:
```bash
use yourDatabaseName
db.yourCollectionName.find().pretty()
```
This will display the imported documents, allowing you to confirm the successful data transfer from Lokalise to MongoDB.

By following these steps, you can manually move data from Lokalise to a MongoDB destination without relying on third-party connectors or integrations.