Hi Simon,
The templates haven't changed between CircuitStudio version 1.4.x and 1.5.
I've just made a basic Excel template that the data for the component in the example file loads correctly when the BOM data contains an extra " character that isn't escaped, e.g.:
2x5 Pin Header 0.1" Header, 2x5, 0.1", Straight, Vert HDR2 HDR2X5 D-300-0163-1 1
The CSV text file contains two double quote characters "" in a row, so the columns will be incorrect for that component. Loading via Excel doesn't have this problem. Is this a similar problem to what you're seeing?
I attached the BOM Basic Template.xltx template file that I made, but please unzip before using. The default location is C:\Users\Public\Documents\Altium\CS\Templates
Best regards,
James Harriman
Altium