When using the "counter" hopper feature and the /counter command for reporting, it outputs as following (example):

[CHAT] Items for red (14,93 min), total: 16438, (66075,0/h):[X]
[CHAT] - Gravel: 3040, 12219,7/h
[CHAT] - Blackstone: 3004, 12075,0/h

The comma is used as a list object separator aswell as a decimal separator within the same line, which makes exporting/transforming to csv and similar formats more difficult.

I'd expect something like this (decimal separated by Full spot/period)

[CHAT] Items for red (14.93 min), total: 16438, (66075.0/h):[X]
[CHAT] - Gravel: 3040, 12219.7/h
[CHAT] - Blackstone: 3004, 12075.0/h

or alternatively (list-separated via semicolon):

[CHAT] Items for red (14,93 min); total: 16438; (66075,0/h):[X]
[CHAT] - Gravel: 3040; 12219,7/h
[CHAT] - Blackstone: 3004; 12075,0/h

This behaviour may be the case with other features of this mod. I just noticed it in the counter feature tho.