If it's a game mod, look for an .exe file inside the new folder.

To access the files inside, you must extract them using a specialized tool:

: Use the official 7-Zip for Windows or The Unarchiver for Mac. Extract the Files : Right-click the FLC.7z file. Select 7-Zip > Extract Here . Run the Content :

If it's an FL Studio project, open the extracted files (likely .flp or similar) within FL Studio .