If this was downloaded from a community forum (like XDA, GitHub, or a gaming mod site), check the original thread for "Readme" notes or user comments.
A very small file (KB) usually indicates a script or text data, while a large file (MB/GB) suggests media or executable software. TP3x.7z
Use a tool like VirusTotal to upload the .7z file and check for malicious scripts. If this was downloaded from a community forum
Knowing the context (e.g., a specific game mod or a phone utility) would allow me to give you a much more detailed breakdown. or a gaming mod site)