Electric is able to read the output of Cadence's Assura and Mentor's Calibre design-rule checkers.

Assura error files (with the extension ".err") can be read with the Import Assura DRC Errors for Current Cell... command (in menu Tools / DRC).

Calibre error files (with the extension ".db") can be read with the Import Calibre DRC Errors for Current Cell... command.

After reading the error file, you can review the errors by typing ">" and "<" to step to the next and previous error that was found. You can also see a list of errors in the cell explorer (see Section 4-5-2).