Eplan File Extension Apr 2026
Understanding EPLAN file extensions is critical for project management, data backup, version control, and cross-platform collaboration. Before examining extensions, it is vital to understand that EPLAN is project-centric . While you can export individual pages, the native working environment relies on a closed project structure. The extensions below represent either the container for that project or specific export/import formats. 1. Native Project Extensions These are the primary formats EPLAN uses to store and compress entire projects.
| Extension | Description | Primary Use | | :--- | :--- | :--- | | | EPLAN Project Archive (Old Format) | Used in older versions (e.g., EPLAN 5.x) to archive an entire project into a single compressed file. | | .elx | EPLAN Project Archive (New Format) | The modern replacement for .elk . Used for exporting, importing, and backing up projects. It is a container file (ZIP-based) that holds all project data, including pages, parts, symbols, and reports. | | .epb | EPLAN Backup | A secure backup format that may include project history and user-specific settings. Often used for disaster recovery. | | .zw1 | Working Project (Proprietary) | These are the internal database files EPLAN uses while a project is open. Users should never manually move, delete, or edit .zw1 files , as doing so will corrupt the project. | Best Practice: When sharing an EPLAN project, always use .elx (Export). Do not copy individual .zw1 folders. 2. Import/Export and Exchange Formats EPLAN must communicate with other engineering tools (ERP systems, other CAD software, Excel). These extensions facilitate that data exchange. eplan file extension
| Extension | Description | Common Scenario | | :--- | :--- | :--- | | | EPLAN Data Format (for macros & symbols) | Importing or exporting a single macro, symbol library, or part data. Used when sharing a specific device or function, not a whole project. | | .emd | EPLAN Macro (Drawing) | A saved drawing fragment (e.g., a motor circuit or PLC card) that can be re-used across multiple projects. | | .ems | EPLAN Macro (Window/Symbol) | Similar to .emd but specifically for window macros or symbol-based macros. | | .txt / .csv | Plain text / Comma Separated Values | Used for importing/exporting parts lists, terminal strip definitions, cable schedules, or device tags to/from Excel or ERP systems. | | .dxf / .dwg | AutoCAD Drawing Exchange | Exporting EPLAN schematics to AutoCAD for non-EPLAN users. Importing building floorplans or panel layouts from mechanical engineers. | | .pdf | Portable Document Format | Standard output for plot generation, client approval, or manufacturing instructions. | | .xml | Extensible Markup Language | Advanced data exchange with CAE systems, PLM (Product Lifecycle Management), or custom scripts. Also used for OPC (Open Platform Communications) data. | 3. Specialized Configuration & Library Extensions These files define the behavior, appearance, and parts database of EPLAN. Understanding EPLAN file extensions is critical for project
Always refer to your specific version of EPLAN (e.g., EPLAN Electric P8, EPLAN Pro Panel) as file handling may have minor version-specific nuances. The extensions below represent either the container for
| Extension | Description | | :--- | :--- | | | EPLAN Parts Database (legacy) | An older format for the central component database (resistors, contactors, wires). Modern versions use SQL databases. | | .epf | EPLAN User Settings / INI | Stores user interface configurations, keyboard shortcuts, and workspace settings. | | .f29 / .f30 | EPLAN Font Files | Contains the specific fonts used for title blocks, labels, and terminal numbering. | | .alk | EPLAN Article (Part) Archive | A compressed archive for transferring parts data between systems. | | .asc | ASCII Symbol File | Used for importing/exporting custom symbol definitions in a text-based format. | 4. Report & Evaluation Extensions After designing a project, EPLAN generates reports. These are often saved as separate files.
EPLAN is a market-leading software suite for Computer-Aided Engineering (CAE), specifically designed for electrical, automation, and fluid power engineering. Unlike generic CAD programs, EPLAN is built around a centralized database model. Consequently, many "files" you see are not standalone drawings but references within a project database.