"LBC1.7z" is a file name format often associated with compressed archives, frequently used for sharing sets of images, documents, or data. To help you manage this file, What is LBC1.7z?
If the file is password-protected, you must enter the password provided by the original source to open it.
This is the specific label given to this archive (e.g., perhaps "Library Collection 1" or "Location Batch 1").
If you tell me what happens when you try to open it, I can tell you exactly how to fix it.