1. Open Google Drive and create a new Google Sheet.

2. Navigate to Extensions > Apps Script.

3. Delete any code that appears and paste the following script:
   ```javascript
   function backupAirtable() {
   var baseId = 'YOUR_AIRTABLE_BASE_ID';
   var tableName = 'YOUR_TABLE_NAME';
   var apiKey = 'YOUR_AIRTABLE_API_KEY';
   var url = https://api.airtable.com/v0/${baseId}/${tableName}?api_key=${apiKey};

   var response = UrlFetchApp.fetch(url);
   var data = JSON.parse(response.getContentText());
   var sheet = SpreadsheetApp.getActiveSpreadsheet().getActiveSheet();
   sheet.clear();

   var headers = Object.keys(data.records[0].fields);
   sheet.appendRow(headers);

   for (var i = 0; i < data.records.length; i++) {
   var row = data.records[i].fields;
   var rowData = headers.map(header => row[header] || "");
   sheet.appendRow(rowData);
   }
   }
   ```

4. Replace 'YOUR_AIRTABLE_BASE_ID', 'YOUR_TABLE_NAME', and 'YOUR_AIRTABLE_API_KEY' with your Airtable base ID, table name, and API key, respectively.

5. Save the script with a recognizable name.

1. In the Apps Script editor, click the Run button (a triangle icon).
2. Grant the script necessary permissions when prompted.
3. Check your Google Sheet to ensure the Airtable data has been fetched and populated correctly.

1. In the Apps Script editor, navigate to Triggers > Add Trigger.
2. In the Choose which function to run dropdown, select backupAirtable.
3. Under Select event source, choose Time-driven.
4. Specify the frequency for the backups (e.g., daily, hourly).
5. Save the trigger.

1. Modify the existing script to save data as a CSV file in Google Drive.

2. Append the following code to the backupAirtable function:
   ```javascript
   function backupAirtable() {
   ...
   var folder = DriveApp.getFolderById('YOUR_GOOGLE_DRIVE_FOLDER_ID');
   var fileName = Backup_${new Date().toISOString()}.csv;
   var csvContent = '';

   // Generate CSV content
   data.records.forEach(function(record, index) {
   var row = headers.map(header => "${record.fields[header] || ''}");
   csvContent += row.join(',') + '\n';
   });

   // Create CSV file
   folder.createFile(fileName, csvContent, MimeType.CSV);
   }
   ```

3. Replace 'YOUR_GOOGLE_DRIVE_FOLDER_ID' with your specific Google Drive folder ID where the backup should be saved.

4. Test the script again to ensure that it creates a CSV file in the specified Google Drive folder.

1. After scheduling and testing, verify periodically that the backups are being created according to the set schedule.
2. Check Google Drive for new CSV files and ensure the contents are accurate.

This step-by-step guide ensures that Airetable data is backed up to Google Drive automatically and regularly.