Changing Amazon S3 file content type

On Amazon S3 storage, every file has its content type, which affects how user agents (like web browsers) will react on this file when downloading it. The content type is automatically detected (basing on the file extension) and assigned to a file after upload, but you can change the content type later manually.

To change file content type, select a file, and in the Properties tool window select Content Type property and change it to a desired value: