The “Get file content” action in Power Automate is used to retrieve the content of a specified file from a particular source. This could be from various sources like SharePoint, OneDrive, Google Drive, or other supported services.

For example, if you’re using this action with SharePoint, you would specify the Site Address and the unique identifier for the file (the File Identifier) in order to retrieve its content.

Once you’ve retrieved the file content, you can use it in subsequent steps of your flow. This might involve sending the file as an email attachment, saving it to another location, or processing the content in some way.

You can also use the “Get file content using path” action if you have the path of the file instead of the identifier.