The .equ file contains the components for formula-based equations for metric types. This file is for internal use during data export and data import. You must import the equation items (.eqi) file when you import the equations (.equ) file.

Exception: In version 8.3.1, you can import the .equ file without the .eqi file if there are no calculations for the metric types, a metric type is defined as derived index, and a KPICL_DRIVEN_BY_KPICL link is defined in the .cml file.

Do not manually modify the .equ file. Changes to this file are not supported.

Source: Metric Studio User Guide  8.4.1

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