The odbcinst.ini file is a standard ODBC configuration file. It consists of a list of drivers installed on the operating system and individual configuration sections for each driver. The configuration sections usually contain a Driver parameter, which passes the full path to the driver. These sections also contain a Setup parameter, which passes the location of the setup dialogs that are use to configure data sources that reference the driver. Other parameters appear as needed.
This document is empty and basically useless. It is generated by a web service that can make some statements in HTML Microdata format. This time the service made zero such statements, sorry.