No. For normal file transfers (MTP), ADB debugging, or fastboot, you do not need the Coolsand driver. This driver is for offline flashing (download mode) when the phone is powered completely off.
Have a specific Coolsand device model or error code? Consult the XDA Developers or GSM-Forum legacy threads – the community often shares working signed 64-bit driver variants. coolsand usb driver 64 bit
If you have a specific brand like or Huawei from 2012, their archived support pages sometimes host the exact 64-bit driver. No. For normal file transfers (MTP)