It could be a configuration backup for a router or switch managing LDP sessions.
Check the official support pages of your hardware or software vendor (e.g., Cisco, Microsoft, or game developers) to see if "LDP CMDM" is a recognized internal tool name. Download LDP CMDM TNK zip
If you have already downloaded it, right-click and view the Properties or use a tool like 7-Zip to "Open Archive" without extracting. Look for a readme.txt or version.xml file inside that might describe its purpose. Possible Origins It could be a configuration backup for a
If you have encountered this file on a forum or received it via a third-party link, exercise caution: Look for a readme
Could you provide on where you saw this name or what hardware/software you were using when it came up? Knowing the source website or the industry would help pinpoint exactly what this file is for.