# FAQs

- Users FAQ
- Which files should be compared via EMF Compare ?
- How to force text comparison?
- EMF Compare compatibility ?
- Where can I find EMF Compare ?
- Developers FAQ
- How can I programmatically add my model file extension in EMF Compare so that it is called automatically ?
- How can I use EMF Compare programmatically ?
- Can EMF Compare be used standalone ?
- Custom data types are always marked as modified by EMF Compare
- Can I programmatically open a comparison editor or dialog ?
- Can I use custom identifiers for my objects ?
- Can I ignore differences on a specific reference, or ignore ordering differences ?