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WPS at a glance
WPS
Microsoft Works created its own long tail of document files among home and small-business users who never lived entirely inside the full Office suite.
ERF at a glance
ERF
Digital photography fragmented into many manufacturer-specific raw formats because camera makers optimized for their own sensors, metadata, and software ecosystems rather than for one shared public raw standard.
Format comparison
| Feature | WPS | ERF |
|---|---|---|
| File type | Document | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1987 | 2004 |
| Inventor | Microsoft | Epson |
| Status | active | proprietary |
| Primary use cases |
|
|
| Vector scaling | Not supported | Not supported |
When to use each format
When to use WPS
- Your source file is already in WPS.
- Preserve source expectations before exporting to ERF.
- WPS is commonly used in document workflows.
When to use ERF
- Your target workflow expects ERF.
- Improve delivery compatibility with ERF.
- ERF is commonly used in image workflows.
FAQs
Why convert WPS to ERF?
Convert to ERF when preserving or restoring Epson-origin raw captures in an archive or compatibility workflow.
In most contemporary pipelines, it is a legacy source format to retain or migrate.
What changes when converting WPS to ERF?
This conversion changes how the format behaves in downstream tools and delivery environments.
What should I review after converting WPS to ERF?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.