# Opening a file (without Seald)
If you have Seald installed on your computer, follow the steps Opening a file (with Seald).
To open the file when you do not have Seald installed, double click on the Seald file, the file is opened in your browser (if not, select a browser as the application to open the Seald file) and follow the authentication steps.
To open a Seald file with the Edge browser, go to Seald Secure Reader (opens new window) and drag and drop your Seald file.
# List of previewable file formats
To preview an encrypted file without installing Seald, the format of the file to be decrypted must be one of the following list: