Files downloaded doesn't have an extension name.

[JamesZBL]

FastHub Version: 4.6.7
Android Version: 8.1.0 (SDK: 27)
Device Information:

• Manufacturer: Xiaomi
• Brand: xiaomi
• Model: Redmi Note 5

---

I tried downloading files which inamed by Chinese characters, but it doesn't have a extension name, so it couldn't be opened by its software as an invalid extension name. I have to rename it with appropriate extension name, but that's fussy.