About the ET file format
ET File Format (ET) stores document or productivity content that can be rendered into a shareable image.
The guide and converter lists are generated from the live HEIC.now catalog, so every conversion shown here is an available workflow.
Why ET files are used
ET File Format files belong to the office and data family and use the .et extension.
The most practical format depends on the software, quality, compatibility and file-size requirements of the destination workflow.
What to know about ET
File structure
ET has format-specific rules for storing image, document or media data.
Quality
Conversion can change compression, colour, metadata, resolution or editability.
Compatibility
Support for ET varies between browsers, operating systems and editing applications.
Original files
Keep the original ET when future editing or maximum retained information matters.
How ET conversion works
Converting ET decodes or renders the source and then encodes the result in the selected destination format.
Review the converted file before replacing the source because format-specific features may not transfer.
heic.now accepts ET as an input and converts it to supported outputs.
ET compatibility and software support
Check that the receiving browser, app or service supports ET before choosing it for delivery.
A JPG or PNG copy is often useful when broad image compatibility is the priority.
ET and related formats
When should you use ET?
- Sharing: Create a file the recipient can open without specialist software.
- Publishing: Prepare content for a website, app or content-management system.
- Editing: Move content into a format supported by the next editing application.
- Archiving: Keep the original and create practical access copies for everyday use.
Convert from ET
Use ET as the source.
ET file format FAQ
What is a ET file?
ET File Format (ET) stores document or productivity content that can be rendered into a shareable image.
Can HEIC.now convert ET files?
heic.now accepts ET as an input and converts it to supported outputs.
What changes when ET is converted?
Converting ET decodes or renders the source and then encodes the result in the selected destination format.
Should I keep the original ET file?
Review the converted file before replacing the source because format-specific features may not transfer.