Example 1: Data exchange between documents of different types

Having completed one document (the Main document), you can use it as a source for filling out other documents. This is quite practical if you are using a small number of documents.

If you use a large number of documents, it is more practical to use a database (the simplest is an Excel spreadsheet) to use the data in other documents.

You can also use separate data files for each separate set of documents.