| exar1 | Siemens MAGNETOM Prisma Protocol Data |
| exb | EverNote Database |
| exc | Microsoft Word Exclude Dictionary |
| exc | SmartWare Dictionary EXC Data |
| exclude | WOW! Diagnostic Exclude Data |
| exd | JSDAI Express Dictionary Data |
| exd | Microsoft Office Control Information Cache |
| exf | ExactFile Checksum Digest |
| exf | EXIF Metadata |
| exg | JSDAI Express-G Data |
| exhibeo | Exhibeo Photo Gallery |
| exi | Efficient XML Interchange Data |
| exif | EXIF Metadata |
| exm | Exam Document |
| exo | Motorola EXORmacs Data |
| exp | Affymetrix Experiment File |
| exp | CATIA Exported Data |
| exportedfavorites | Transmit Exported Favorites |
| expressionmap | Cubase Expression Map |
| exprwdcss | Microsoft Expression Web CSS Data |
| exprwdjs | Microsoft Expression Web Javascript |
| exprwdnav | Microsoft Expression Web Navigation Data |
| exprwdstm | Microsoft Expression Web STM Data |
| exprwdtxt | Microsoft Expression Web Text Data |
| exprwdxml | Microsoft Expression Web XML Data |
| exprwdxsl | Microsoft Expression Web XSLT Data |
| extra | BreakPad Crash Log Extra Data |
| extrep | Sage External Representation |
| extz | Extron PCS Configuration Backup |
| exx | IBM Linkway MsgPut Data |
| exy | ISIS GIS Diagnostic Data |
| ex_ | Compressed EXE File |
| eyd | ASL EYE-TRAC PC Data |
| eyetvp | EyeTV Recording Metadata |
| eyetvsched | EyeTV Schedule Data |
