# Modifying Data File Content

Sentinel LDK recognizes that data files, by nature, are subject to regular modification. The following information describes how to update the protection of modified encrypted data files.

To update protection after modifying the content of an encrypted file:

1.Open the Data Protection project containing the encryption settings for the modified data file.

2.In the Main pane, right-click the entry for the modified file that is to be encrypted, and select Refresh Selected. The green flag for the entry changes from green to yellow and the status column displays the Changed status.

NOTE If you have multiple files that have been modified, you can use the Refresh All option from the right-click menu.

3.Right-click the entry for the modified file that is to be encrypted, and select Encrypt Selected, (or select Encrypt All to encrypt multiple files simultaneously). The modified data is encrypted. The encrypted files are saved in the specified output directory and can now only be accessed when the appropriate Sentinel protection key is accessible.

### Related Topics

Main Pane

Modifying Input Data