It is any away to open and edit a file from with extension .mmdb
? like Maxmind geo
database, I have searched to google but no any results!
you can open this with NCBI C++ Toolkit. LinK: ftp://ftp.ncbi.nih.gov/toolbox/ncbi_tools++/CURRENT
Installation notes https://www.ncbi.nlm.nih.gov/IEB/ToolBox/CPP_DOC/#install