What should Logan do to ensure clients can access his shared presentation file?

To ensure clients can access his shared presentation file, Logan should set the file settings to Public. When a file is designated as public, it becomes accessible to anyone with the link or the proper credentials, depending on the specific platform used. This setting is essential for collaboration and sharing among multiple users, as it eliminates barriers that might prevent clients from viewing or accessing the content.

In contrast, if the file is set to Private, only specific individuals or groups that Logan explicitly shares it with would have access, which may exclude clients who may need to view the presentation. Sending the file via email is a method of sharing but does not guarantee ongoing access, as clients would need to have the file in their inbox rather than having a convenient link or access point. Using a different file format might be relevant if compatibility issues arise, but it does not directly address the access problem. Therefore, making the file public is the most effective way for Logan to ensure that all clients can access the shared presentation seamlessly.