After RAW data is converted into ASCII data, using the Columbus software, the file contains a header and data. The data values which are presented in the split ASCII format are ADC-values.

In the header you will find, among others, following information :
f/i
Scaling offset: 2048 /This is the "zero" point of the signal
Scaling factor: 0,061 /This is the factor to scale your values to the "unit values"

You can use the "Scaling offset" and the "Scaling factor" to convert the ADC values to the values which are required for "units" (e.g. V, mV, uV, % and so on...).

Value (in Units) = (ADC-value - "scaling offset") * "scaling factor"