.SCAP File

The scap file extension is associated with the OS X (now macOS) operating system developed by Apple, Inc. for Mac computers.

The scap file stores data for low level programs and firmware updates for Mac computers with UEFI BIOS.

Files with scap file extension can be generally found on OS X (MacOS) platform as part of firmware updates.

How to open:

These files are used during firmware updates by the system itself, you cannot work with them manually.

How to convert:

It does not seem possible to convert *.scap files to anything else.