Error 40 -- Attempt to open a file with unresolvable formulae

As stated earlier in the documentation, not every Superbase file that can be defined in Superbase is able to be opened outside of Superbase. The file that you are attempting to open may reference other Superbase files which are not yet open, or may reference unsupported Superbase Basic Language commands, or user-defined functions. Make sure that you are opening any referenced files before opening a file which needs them. In most cases, this error will result in the file being opened in Read-Only mode, regardless of the mode requested.