The file is one segment of a multi-part compressed archive. Because it is the 28th part, you will need all preceding parts (part01 through part27) and any subsequent parts to successfully extract the contents. Common Uses for "Star9" Files
While "Star9" is a generic naming convention, it frequently appears in the following contexts: Star9.part28.rar
: Use a program like WinRAR or 7-Zip to open only the first part ( part01 ). The file is one segment of a multi-part compressed archive