diff --git a/.bin/file-exts-downloader.py b/.bin/file-exts-downloader.py
new file mode 100644
index 00000000..2849f4bb
--- /dev/null
+++ b/.bin/file-exts-downloader.py
@@ -0,0 +1,119 @@
+#!/usr/bin/python3
+
+# Open a pull req if any sources are missing/need to be added
+
+from bs4 import BeautifulSoup
+import requests
+import time
+import re
+
+MICROSOFT_URL="https://support.microsoft.com/en-us/windows/common-file-name-extensions-in-windows-da4a4430-8e76-89c5-59f7-1cdbbc75cb01"
+WIKI_ROOT="https://en.wikipedia.org"
+WIKI_URL="https://en.wikipedia.org/wiki/List_of_filename_extensions"
+GFG_URL="https://www.geeksforgeeks.org/list-of-file-formats/"
+
+wiki_urls=[]
+exts=[]
+tables=[]
+
+res=requests.get(WIKI_URL).text
+wiki_soup=BeautifulSoup(res,"html.parser")
+
+for i in wiki_soup.findAll('div',{"class":"mw-content-ltr mw-parser-output"})[0].findAll("ul")[2].findAll("li"):
+    wiki_urls.append(WIKI_ROOT+i.a.get('href'))
+
+for i in wiki_urls:
+    res=requests.get(i).text
+    wiki_soup=BeautifulSoup(res,"html.parser")
+
+    tables+=wiki_soup.findAll("table")
+    time.sleep(0.5)
+
+for i in tables:
+
+    if "wikitable" not in i["class"]:
+        continue
+        
+
+    for ext in i.tbody.findAll("tr"):
+        ext=ext.findAll('td')
+
+        if ext==[]:
+            continue
+
+        ext=re.sub(r"\[.*?\]","",ext[0].text).strip()
+
+        if "," in ext:
+            for j in ext.split(","):
+
+                if "." in j:
+                    continue
+
+                exts.append(j.strip())
+            continue
+        
+        if "." in ext:
+            continue
+
+        exts.append(ext)
+
+res=requests.get(MICROSOFT_URL).text
+microsoft_soup=BeautifulSoup(res,"html.parser")
+
+microsoft_exts=microsoft_soup.findAll("tbody")[1].findAll('p')[::2]
+
+for i in microsoft_exts:
+
+    i=i.text
+
+    if "," in i:
+        i=i.split(",")
+        for j in i:
+            exts.append(j.strip().upper())
+        continue
+
+    exts.append(i.upper())
+
+res=requests.get(GFG_URL).text
+gfg_soup=BeautifulSoup(res,"html.parser")
+
+gfg_exts=gfg_soup.findAll("tbody")
+
+for i in gfg_exts:
+    i=i.findAll('th')
+    for ext in i:
+        ext=ext.text.strip()
+        if ext.startswith('.'):
+            exts.append(ext[1:].upper())
+        else:
+            exts.append(ext.upper())
+
+exts=list(dict.fromkeys(exts))
+
+open("file-ext.txt","w").write("\n".join(exts))
+
+mutated_exts=[]
+
+for i in exts:
+    mutated_exts.append(i)
+    mutated_exts.append(i.lower())
+
+mutated_exts=list(dict.fromkeys(mutated_exts))
+
+open("file-ext-all-cases.txt","w").write("\n".join(mutated_exts))
+
+mutated_exts=[]
+
+for i in exts:
+    mutated_exts.append(i.lower())
+
+mutated_exts=list(dict.fromkeys(mutated_exts))
+open("file-ext-lower-cases.txt","w").write("\n".join(mutated_exts))
+
+mutated_exts=[]
+
+for i in exts:
+    mutated_exts.append(i.upper())
+
+mutated_exts=list(dict.fromkeys(mutated_exts))
+open("file-ext-upper-cases.txt","w").write("\n".join(mutated_exts))