.AIH File

The aih file extension is associated with the ArcGIS for Desktop (also known ArcView), a GIS (geographic information system) software for Microsoft Windows that allows users to manage maps and geospatial data. The .aih file stores attribute index.

Attribute stores non-spatial information about a geographic feature in a GIS, usually stored in a table and linked to the feature by a unique identifier. For example, attributes of a river might include its name, length, and sediment load at a gauging station.

How to open:

Probably not meant to be accessed by the user.

How to convert:

Probably cannot be converted to anything else.