| Extension Name | Extension Type | Category | Dev.Company | File Format |
|---|---|---|---|---|
| .DRU File Extension | EAGLE Design Rules File | CAD | CadSoft | Text |
| .EPF File Extension | EAGLE Project | CAD | CadSoft | Unknown |
| .SCH File Extension | EAGLE Schematics File | Data | CadSoft | Unknown |
| .BLD File Extension | Envisioneer Building Project File | Data | Cadsoft | Binary |
| .BRD File Extension | EAGLE Circuit Board File | Data | CadSoft | Unknown |
| .ULP File Extension | EAGLE User Language Program | Data | CadSoft | XML |