This phrase is often used in contexts where:
* You're filling out a form or submitting information online: It indicates that you can submit the form without attaching a file, and you can add it later if needed.
* You're working on a project or document: It means you can continue working without a specific file, and can add it in a later stage.
Here are some examples of how the phrase might be used:
* "You can submit your application without attaching your resume, and allow the file to be added later."
* "The project proposal doesn't require any attachments now, but you can allow files to be added later if necessary."
The exact meaning can depend on the specific context, but it generally implies that you have the flexibility to add a file at a later time.