| edm | Adobe Dreamweaver EDML File |
| edml | Adobe Dreamweaver EDML File |
| edmx | ADO.NET Entity Data Model Designer Data |
| edoc | Erlang EDoc Document |
| ee | BlackBerry JDE Execution Environment File |
| eep | AVRDUDE Eprom Data |
| eer | Lahey Fortran Error Data |
| egg | Python Egg Package |
| egg-info | Python Egg Metadata |
| egg-link | Python Egg Link |
| eglib | Adobe Edge Animate Library |
| egrid | Eclipse Grid Data |
| egt | GOLD Parser Enhanced Grammar Table |
| eham | HAM Executable File |
| ejs | Embedded JavaScript Code |
| ejss | Easy JavaScript Simulation Data |
| eka | Eureka Internal Data |
| ekp | Altera Quartus II AES Encryption Key |
| el | Emacs Lisp Code |
| ela | EasyLanguage Archive |
| elb | Synergy/DE Executable Library |
| elc | Emacs Lisp Compiled Bytecode |
| eld | EasyLanguage Document |
| elf | Executable and Linkable Format File |
| elk | Altium Designer Linker Error Messages File |
| els | EasyLanguage Storage |
| emakefile | Erlang Makefile |
| emat | ANSYS Element Matrix Data |
| emcl | microC Library |
| emma | EMMA Data File |
| emof | Eclipse EMOF Model |
| emx | IBM Rational Software Architect Model |
| epl | TallyMan EPL File |
| erb | Erubis Script |
| erb | Ruby ERB Script |