A automator workflow to facilitate symbolicating .crash files on macOS.
After installing the workflow, there'll be a new context menu for file(s) selected.

You can also add a shortcut for the symbolication:

Note:
- Symbols files could be placed anywhere searchable by spotlight.
- You can select multiple files at a time.
- After symbolicating the file(s), it will open the result file by TextEdit.
- The result file(s) is stored at the same folder as the .crash file(s), named with .symbolized.crash extension.