If you are looking for a reliable all-in-one calculator, it is highly recommended to use the official version of One Calc or similar reputable apps like or Solves from the App Store.
While the specific file you mentioned is an external package, the application generally offers: If you are looking for a reliable all-in-one
The naming convention follows a standard format used by file-sharing communities to denote compatibility and versioning: If you are looking for a reliable all-in-one