Hello,
I assume you are asking about exporting the cash flow (from the Cash Flow tab on the Results page) to Excel with Formulas.
When that is an option, you should see "Send to Excel with Equations" above the cash flow table. The option is only available with Windows versions of SAM because SAM cannot interact with Excel in MacOS or Linux. It also is only available for the Residential, Commercial, and Single Owner financial models.
Best regards,
Paul.