https://www.automateexcel.com/how-to/embed-file/
Embed a File (Object, Email, etc.) in Excel & Google Sheets - Automate Excel
Jan 11, 2023 - This tutorial demonstrates how to embed a file (such as an object, email, or document) in Excel and Google Sheets. Embed an Object in a
embed a filein excelgoogle sheetsobjectemail