Depending on where you downloaded it from, it likely contains a collection of files (images, documents, etc.) rather than a single file. How to Open LBC1.7z
Install 7-Zip , the free, official software. Right-click the file, select 7-Zip , and choose "Extract Here" or "Extract to LBC1\" . Alternative: Use free software like WinRAR or PeaZip . macOS: LBC1.7z
Once extracted, you will have a normal folder containing the files you need! To help you further, could you please tell me: Depending on where you downloaded it from, it