Interoperability
Although the number of items in an RSS channel are theoretically not limited, some news aggregators do not support RSS files larger than 150KB (if all elements are provided on a new line, this size corresponds to approx. 2,800 lines). For example, applications that rely on the Common Feed List of Windows might handle such files as if they were corrupt, and not open them. Interoperability can be maximized by keeping the file size under this limit.
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