Work through this in order
- Select a local file intentionally using the browser picker
- Let the viewer inspect the header and file type
- Read text or tables in the local result panel
- Use built-in audio video image or PDF preview when available
- Use a dedicated desktop application for unsupported proprietary formats
Use the matching tool
Inspect a local copy with Universal File Viewer. After the check, save or repair files only using trusted software that supports the format.