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Image

What is a .ora file?

A .ora file is an OpenRaster Image Format. This is an image format โ€” a picture, drawing or graphic.

How to open a .ora file

  • GIMP (free) and IrfanView open a very wide range of image formats, including obsolete ones.
  • XnView MP is the best bet for unusual or legacy image types.
  • Your operating system's built-in viewer may work for mainstream formats.

The registry records this extension against OpenRaster Image Format, so software from that family is the most likely match.

How to convert a .ora file

  • Open it in GIMP or XnView and export as .png (lossless) or .jpg (smaller).

MIME type

When a .ora file travels over the web, servers label it with this MIME type:

image/openraster

What's a MIME type?

The technical record

For archivists, developers and the merely curious: these are the PRONOM registry entries for .ora.

Format nameVersionMIME typePUID
OpenRaster Image Formatโ€”image/openrasterfmt/998

Got another one?