BDV boardview for a board coded QD-R62-MB-E. The name gives no brand or model; the MB-E ending probably marks revision E. Viewers such as FlexBV read this format and display part outlines, references and nets on both sides of the board, which helps locate components, follow power rails and pick test points when measuring resistance to ground. Check that the code and revision on the PCB match before trusting part positions.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @ITHINKHS. Enginerys does not host this file.
How to open a .bdv file
Text-based boardview produced by Honhan / Hon Hai test tooling, with lightly obfuscated content.
OpenBoardViewFlexBVBoardViewer