По запросу: "extension file format specification" найдено 144 иконки.

progressive-webapps/apis/web-app-manifest Created with Sketch.
cloud Created with Sketch Beta.
https://www.svgrepo.com/show/474929/opened-folder.svg
swap-vertical
dropbox
Gala icon set image/svg+xml Gala icon set https://github.com/sisyphusion/gala-icons Jake Wells
generate-pdf
ic_fluent_save_copy_24_filled Created with Sketch.
Clarity Icon This is shape (source) for Clarity vector icon theme for gtk Clarity Icon This is shape (source) for Clarity vector icon theme for gtk Jakub Jankiewicz Jakub Jankiewicz 2010 image/svg+xml
843
image/svg+xml
file_pdf [#1729] Created with Sketch.
file_missing [#1692] Created with Sketch.
file_doc [#1748] Created with Sketch.
file_upload_line
ic_fluent_attach_with_text_24_regular Created with Sketch.
file-zip Created with sketchtool.
Clarity Icon This is shape (source) for Clarity vector icon theme for gtk Clarity Icon This is shape (source) for Clarity vector icon theme for gtk Jakub Jankiewicz Jakub Jankiewicz 2010 image/svg+xml
file
file-document Created with Sketch Beta.