How long must wills be kept on file?

Wills should be kept on file indefinitely, as they may need to be referenced or probated long after they are created. It's essential to store them securely and ensure that the relevant parties, such as executors or family members, know their location. Additionally, if there are any changes or updates, new versions should be filed, and the old ones should be marked as revoked. Always check local laws, as requirements may vary by jurisdiction.