S3 a fast core functionality for object storage, but no file system.
The use cases above give an overview of scenarios to store data in S3 buckets. Data is stored as an object within the buckets. The max. size for a single object i limited to 5 TB and 99.999999999% durable is a value to trust. At S3 the requester pays, versioning is possible, hosting of static websites or object lifecycle management are a good purpose to choose this storage bucket in your architecture.