All popular and common file extensions categories by icons in JSON format.

IconTypes.json

{
    "ExtensionReference":"https://www.computerhope.com/issues/ch001789.htm",
    "IconsReference":"https://react.semantic-ui.com/elements/icon",
    "Extensions": [
        {
            "Ext": [
                "txt",
                "md",
                "tex",
                "doc",
                "docx",
                "odt",
                "rtf",
                "wks",
                "wpd"
            ],
            "Icon": "file text outline"
        },
        {
            "Ext": [
                "pdf"
            ],
            "Icon": "file pdf outline"
        },
        {
            "Ext": [
                "aif",
                "cda",
                "mid",
                "midi",
                "mp3",
                "mpa",
                "ogg",
                "wav",
                "wma",
                "wpl"
            ],
            "Icon": "file audio outline"
        },
        {
            "Ext": [
                "ai",
                "bmp",
                "gif",
                "ico",
                "jpeg",
                "jpg",
                "png",
                "ps",
                "psd",
                "svg",
                "tif",
                "tiff"
            ],
            "Icon": "file image outline"
        },
        {
            "Ext": [
                "3g2",
                "3gp",
                "avi",
                "flv",
                "h264",
                "m4v",
                "mkv",
                "mov",
                "mp4",
                "mpg",
                "mpeg",
                "rm",
                "swf",
                "vob",
                "wmv"
            ],
            "Icon": "file video outline"
        },
        {
            "Ext": [
                "7z",
                "arj",
                "deb",
                "pkg",
                "rar",
                "rpm",
                "gz",
                "z",
                "zip"
            ],
            "Icon": "file archive outline"
        },
        {
            "Ext": [
                "bin",
                "dmg",
                "iso",
                "toast",
                "vcd"
            ],
            "Icon": "disk outline"
        },
        {
            "Ext": [
                "csv",
                "dat",
                "db",
                "dbf",
                "log",
                "mdb",
                "sav",
                "sql",
                "tar",
                "xml",
                "json"
            ],
            "Icon": "database"
        },
        {
            "Ext": [
                "apk",
                "bat",
                "bin",
                "com",
                "exe",
                "gadget",
                "jar",
                "wsf"
            ],
            "Icon": "archive"
        },
        {
            "Ext": [
                "fnt",
                "fon",
                "otf",
                "ttf"
            ],
            "Icon": "font"
        },
        {
            "Ext": [
                "asp",
                "aspx",
                "cer",
                "cfm",
                "cgi",
                "pl",
                "js",
                "jsp",
                "part",
                "php",
                "py",
                "xhtml",
                "c",
                "class",
                "cpp",
                "cs",
                "h",
                "java",
                "sh",
                "swift",
                "vb"
            ],
            "Icon": "file code outline"
        },
        {
            "Ext": [
                "html"
            ],
            "Icon": "html5"
        },
        {
            "Ext": [
                "css"
            ],
            "Icon": "css3"
        },
        {
            "Ext": [
                "rss"
            ],
            "Icon": "rss"
        },
        {
            "Ext": [
                "pps",
                "ppt",
                "pptx"
            ],
            "Icon": "file powerpoint outline"
        },
        {
            "Ext": [
                "xlr",
                "xls",
                "xlsx"
            ],
            "Icon": "file excel outline"
        },
        {
            "Ext": [
                "doc",
                "docx"
            ],
            "Icon": "file word outline"
        }
    ],
    "Icon_Default": "file outline"
}