Export guide — Reolink
Reolink NVRs export from the playback screen; the desktop app works great too. You'll need a USB stick (32 GB or larger). When you're done, head back to the upload steps.
Use a spare USB port on the NVR.
Right-click → Playback, pick the camera covering your sales floor, and choose the date.
Use the clip/download (scissors) icon, set start/end to your opening hours, and choose Download/Backup to the USB stick, MP4 format.
A full day takes a while — leave it running and pull the stick when the bar completes.
Using a computer instead? The free Reolink Client on a computer is even easier: Playback → pick camera & date → select the range → Download. Files land as MP4.