# Having trouble loading fNIRS csv into MNE-NIRS

**URL:** <https://mne.discourse.group/t/having-trouble-loading-fnirs-csv-into-mne-nirs/4449>\
**Category:** Support & Discussions\
**Created:** [February 22, 2022, 1:45am UTC](https://mne.discourse.group/t/having-trouble-loading-fnirs-csv-into-mne-nirs/4449 "2022-02-22T01:45:33Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![smf](https://avatars.discourse-cdn.com/v4/letter/s/ac91a4/32.png) [@smf](https://mne.discourse.group/u/smf)\
**Post date:** [February 22, 2022, 1:45am UTC](https://mne.discourse.group/t/having-trouble-loading-fnirs-csv-into-mne-nirs/4449/1 "2022-02-22T01:45:33Z")

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Having trouble building a snirf file from fNIRS hbo hbr csv files. I followed the custom data import tutorial ([Importing data from fNIRS devices — MNE 0.24.1 documentation](https://mne.tools/stable/auto_tutorials/io/30_reading_fnirs_data.html#custom-data-import)) and my data seems to be imported correctly, the channel names and data looks OK when I plot it. However, there is a lot of missing data in the info and raw data objects, but I cant figure out how to supply that additional data (inter-optode distances, sensor locations, other snirf fields…).

Appreciate any help!