If you can share where you found it or any context about the sender, I can help you narrow down what is inside.
Companies often use "RJ" prefixes for automated reports or batch job outputs. RJ180002.zip
It may be a private archive from a specific workplace or educational institution. 💡 To identify it, you can check: If you can share where you found it
Some jurisdictions use similar alphanumeric codes for public filings or case documents. RJ180002.zip
It could be a technical drawing package or CAD data for a specific part number.
Right-click the file to see properties or creation dates.
Large files often suggest media; small files suggest text or data. Source: Where did you download or receive it from?
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