"Checksum" algorithm/math formula to get a CRC byte from 6 bytes.

Job ID: 34385913

Budget: $30 – $250 USD

The attached excel file includes the "CRC" (first column) which is made up of Data1 to Data7.
We need to find the math formula/algorithm to create the CRC value from available Data, to make the receiver peripheral to be happy with the "CRC".

All data are in hex.

Code sample in C.