This article describes the different file formats that SRF files use. It explains how each file is used and how to open or convert it.
How do I open a file extension .file
There are several file formats that use the SRF file extension, but the most common is as a Sony raw image file. These are uncompressed and unaltered raw image files that Sony digital cameras store photographs as, similar to ARW and SR2 files.
The animation software LightWave 3D uses SRF files not for photos like Sony cameras, but to store information about how a 3D surface should look, such as color, transparency and shadow. These are called LightWave surface files.
Another use for some files with this extension is as Server Response files, also known as Stencils. They are used by .NET applications and can store script tags and HTML content.