InterAction+ 365 is available on your Add-ins menu.
When you receive a list of contacts in an Excel spreadsheet (e.g., for/from a meeting, conference, or event), you can use the InterAction+ for Excel add-in to analyze that list to see how many of the people in the spreadsheet are already contacts in InterAction+.
The analysis indicates how many are known contacts (Firm Contacts or User Contacts) and how many and which ones are new contacts to assess for addition.
You can select any individual contact (e. g., select a cell in the Excel spreadsheet) and InterAction+ for Excel provides full contact information about that individual.