DER file for Wiser Home Matter Thermostat Genuineness Master (part of Schneider Electric Device Genuineness PKI)

This a X509 certificate file, using DER format (binary). You can convert it in PEM format using openssl for example openssl x509 -inform der -in "certificate".cer -out "certificate".pemIt's part of "Schneider Electric DG Root CA" hierarchy.