File Extensions list icon

File Extensions list

Duncan Watson
★ 4.5 (45 ratings)
⬇ 5,000+ downloads
Est. actual: 7,304
Free
Released: Feb 3, 2014
No in-app purchases
No ads

Signals

4 this week · 1 positive · 2 warnings All of this week's signals →
  • 📈Last 7 days +5 installs — 83% slower than the week before (+29) · 1/day since Oct 9
  • 🏆Among Tools apps bottom 45% by installs gained this week (895 peers growing)
  • ⭐Rating steady at ★ 4.50 since Oct 9
  • 🛠Updates dormant · updated 494 days ago
Installs since launch
0 3.7K 7.3K 7.3K Feb 3, 2014 today
+34 installs · 0 ratings since Oct 9
Update history
1.0 Jul 4, 2025 · seen Oct 22, 2026
Only the current version so far — new entries appear as the app ships updates.

File Extensions list is a tools app by Duncan Watson with 5,000+ downloads (about 7.3K estimated). +5 installs in the last 7 days. Rated 4.5 from 45 ratings. Released Feb 3, 2014. Install growth, rank history, SDKs and ad networks.

From the store listing: “Reference list of PC file extensions with matching applications”