| etb | Project Pluto Guide Event Table |
| etb2 | Timbuktu Pro Resource Data |
| etbl | eTextbookViewer License Data |
| etc | EarthTime Data |
| etc | eTreppid Compressed Data |
| etd | Adobe Reader EBX Transfer Data File |
| etex | eTutor Questions Data |
| etf | MicroEMACS Template Data |
| etff | Encrypt4all Theme Data |
| eti | ETI Stream |
| etk | Orgadata LogiKal ETK Data |
| etl | Active Media Eclipse Transition Listing |
| etl | ReadyBoot Event Table Data |
| etn | Telnet98 Session Data |
| eto | AquaCrop Reference Evapotranspiration Data |
| etq | eSignal Time and Quotes Data |
| etr | eTextReader Document |
| ets | eSignal Time and Sales Data |
| etx | Structure Enhanced Text Data |
| ety | ety-python Data |
| etz | RAM Elements Model |
| euhl | Qualcomm Eudora for Mac Help Data |
| euk | Euklides Dynamic Geometry |
| eul | Metrel Eurolink Pro Data |
| eulumdat | EULUMDAT Data |
| eup | EagleUp Data |
| eus | EDonkey2000 Serverlist Tool Data |
| eut | RadiMation Equipment Under Test Data |
| eux | Eulogica Funeral Information |
| ev | Echoview File |
| ev1 | Calendar Commander v1 Event File |
| ev2 | Calendar Commander v2 Event File |
| ev3 | Az-Tech Everlock Options |
| ev3 | Team Manager 2 Meet Export File |
| ev3p | Lego Mindstorms EV3 Program File |
