A user does not agree with some of the object properties that are on the existing symbols in a file and wants to change them. Is the electrical database available to be accessed for doing this?
The electrical Database cannot be open. The Symbol number in Object Properties is not editable, it is a symbol number from the Symbol Manager. (see attached image) If you change a symbol to a different one (swap symbol command for example) the symbol number will change as well.
So, if the values in the Object Properties dialog for any particular symbol in the file might not be correct, the only way to change it is by changing the symbol to one that has the correct symbol number. You can do that by using Swap Symbol. There is good information showing you how to do that in the Help.