If you are looking for how to manage files like this on a device (often associated with similar model strings), you can use the following methods:
I was unable to find a specific product, file, or established term officially known as "." It is possible this is a specific filename for a driver, firmware update, or a niche technical resource. M143b rar
While "M143b" is specific, similar alphanumeric strings often appear in these categories: If you are looking for how to manage
: Technical reports, such as those from the Defense Technical Information Center (DTIC), use coded identifiers for aviation materials and research papers. M143b rar