afaik, only windows can read this file
For some time now I have been concerned about a mystery file called Thumbs.db that started appearing in many folders on my computer, my server account, and the College web server. The name seemed ominous. Was this the sign of some sort of hacker getting into the system and leaving his/her finger prints around?
The truth - as is so often the case - turned out to be much more mundane and innocuous. The thumbs.db file is generated by the Windows operating system. It is a database file containing the small images displayed when you view a folder in "thumbnail" view (as opposed to tile, icon, list, or detail view). No harm is done by deleting thumbs.db files. There is no need to include them in your system backups. Whether you see these files or not is a function of your File Options settings.