NDVI values of the downloaded tif file in the QGIS

I downloaded the NDVI tiff file and imported into QGIS, the values are ranging in thousands. Though it shows a correct range (-1 to 1) in the EO browser. Also instead of one band, it shows three bands.

Check this FAQ:
https://www.sentinel-hub.com/faq/how-do-i-get-actual-ndvi-values