AWS Snowball Edge设备本身并不提供文件格式转换的功能。但是，您可以使用AWS Snowball Edge设备来执行文件传输任务，并在任务中包括文件格式转换步骤。

以下是一个使用AWS Snowball Edge设备进行文件转换的示例解决方案：

1. 创建一个Amazon S3存储桶，用于存储输入文件和输出文件。

import boto3

s3 = boto3.resource('s3')
bucket_name = 'your-bucket-name'
bucket = s3.Bucket(bucket_name)

2. 将待转换的文件上传到Amazon S3存储桶。

input_file_path = '/path/to/input/file.txt'
input_file_key = 'input/file.txt'
bucket.upload_file(input_file_path, input_file_key)

3. 创建一个AWS Snowball Edge传输任务，并指定输入文件和输出文件的位置。在任务中执行文件转换的代码。

import boto3

snowball = boto3.client('snowball')
job_role_arn = 'arn:aws:iam::123456789012:role/snowball-role'
input_s3_uri = f's3://{bucket_name}/{input_file_key}'
output_s3_uri = f's3://{bucket_name}/output/file.txt'

response = snowball.create_job(
    JobType='IMPORT',  # 或者EXPORT，具体根据实际情况确定
    JobResource={
        'S3Resources': [
            {
                'BucketArn': f'arn:aws:s3:::{bucket_name}',
                'KeyRange': {
                    'BeginMarker': input_file_key,
                    'EndMarker': input_file_key
                }
            }
        ],
        'LambdaResources': [],
        'Ec2AmiResources': [],
        'ClusterResources': [],
        'RemoteClusterResources': [],
    },
    RoleARN=job_role_arn,
    ShippingOption='SECOND_DAY',
    SnowballCapacityPreference='T100',
    AddressId='address-id',
    KmsKeyARN='kms-key-arn',
    Notification={
        'SnsTopicARN': 'sns-topic-arn',
        'JobStatesToNotify': ['JobState'],
        'NotifyAll': False
    },
    SnowballType='EDGE',
    Description='job-description',
    ClientRequestToken='client-request-token',
    ForwardingAddressId='forwarding-address-id',
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