.SPEF File

The spef file extension is related to the Standard Parasitic Exchange Format (SPEF).

SPEF is an IEEE standard for representing parasitic data of wires in a chip in ASCII format.

How to open:

SPEF is stored in simple text format and viewable in any text editor.

How to convert:

As far as we know, this .spef file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.