In Import > Translators > Pads, it fails with the following error:

Unrecognized format in header line of input file. Line 1: !PADS-POWERPCB-V10.0-BASIC! DESIGN DATABASE ASCII FILE 1.0 …….ERROR: Finishes with errors.


The above error occurs when older versions of an PADS ASCII file is given as an input to pads_in. The newer version of the ASCII can be exported using PADS version 5 or later by choosing the menu items: File > Export > ASCII. If a newer version of PADS is not available, export ASCII by changing the version string in the ASCII file.

For example, in the following: !PADS-POWERPCB-V3.0-MILS! DESIGN DATABASE ASCII FILE 1.0 Change to the latest version available: !PADS-POWERPCB-V2007.0-MILS! DESIGN DATABASE ASCII FILE 1.0

Note that with this method you need to verify the translated design thoroughly.

Cadence recommends to output .asc (ASCII) file from the PADS layout software. If you are exporting PADS ASCII (.asc ) file from any third party translators, manually verify the General Parameters of the PCB design section in the .asc file.