Fg-optional-editor.bin -

If you are encountering a "missing file" error during installation, it is usually because you accidentally unchecked a file (like English voiceovers) that the game requires to function, rather than an optional one like the editor.

The name fg-optional-editor.bin tells you exactly what is inside if you know how to read it: fg-optional-editor.bin

Because it is an executable .bin file, it can sometimes be flagged by security software. If you know the source of the file is trustworthy (e.g., direct from an official simulation website), you can exclude it from scanning. If you are encountering a "missing file" error

Based on standard naming conventions in flight simulation and open-source tools, this file is most likely related to (an open-source flight simulator). Based on standard naming conventions in flight simulation

: Always use the "Limit RAM" option in the installer, even on high-end PCs, to prevent crashes during the long decompression process.

: During the "Select Components" screen of the installer, ensure the "Level Editor" checkbox is ticked if you want it installed. Verification : After installation, it is recommended to run the "Verify BIN files before installation.bat"