# \#data-import

**URL:** https://mne.discourse.group/tag/data-import/71.md

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## [Different data and plots when reading the same edf file in mne, eeglab and edfbrowser](https://mne.discourse.group/t/different-data-and-plots-when-reading-the-same-edf-file-in-mne-eeglab-and-edfbrowser/6318)

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**Author:** [@datalw](https://mne.discourse.group/u/datalw)\
**Replies:** 30\
**Last updated:** [August 12, 2026, 9:35am UTC](https://mne.discourse.group/t/different-data-and-plots-when-reading-the-same-edf-file-in-mne-eeglab-and-edfbrowser/6318 "2026-08-12T09:35:24Z")

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MNE version: 1.1 operating system: Windows 11 Hi, I have read an edf file with mne, which contains also 3 bio channels. The plots of the bio channels have abnormal patterns. However, these abnormalties disappeared whe…

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## [mne.io.read\_raw\_curry for Curry 9](https://mne.discourse.group/t/mne-io-read-raw-curry-for-curry-9/11245)

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**Author:** [@c.albero](https://mne.discourse.group/u/c.albero)\
**Replies:** 1\
**Last updated:** [June 12, 2025, 10:35pm UTC](https://mne.discourse.group/t/mne-io-read-raw-curry-for-curry-9/11245 "2025-06-12T22:35:29Z")

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MNE version: 1.8 operating system: macOS Hi all, I’m trying to load EEG files recorded with Curry 9 and got this error: "The following required files cannot be found: \['info' 'labels'\]." It seems that the function d…

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## [Reading an mff file from Netstation](https://mne.discourse.group/t/reading-an-mff-file-from-netstation/11114)

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**Author:** [@Tyrion1803](https://mne.discourse.group/u/Tyrion1803)\
**Replies:** 6\
**Last updated:** [April 26, 2025, 7:01pm UTC](https://mne.discourse.group/t/reading-an-mff-file-from-netstation/11114 "2025-04-26T19:01:57Z")

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MNE version: 1.7.1 operating system: e.g. macOS 15.4 I am a programmer with zero knowledge of EEG helping a PI create a pipeline to analyze his data.I have an EEG file (.mff) that comes from Netstation. I managed to lo…

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## [cannot open preprocessed eeglab file](https://mne.discourse.group/t/cannot-open-preprocessed-eeglab-file/10565)

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**Author:** [@Mr-mosaic](https://mne.discourse.group/u/Mr-mosaic)\
**Replies:** 1\
**Last updated:** [November 25, 2024, 6:23am UTC](https://mne.discourse.group/t/cannot-open-preprocessed-eeglab-file/10565 "2024-11-25T06:23:15Z")

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when using import funtion for eeglab file: raw = mne.io.read\_raw\_eeglab(‘D:\\02020008rest 20150624 1711…mat.set’, preload=True) i received the NotImplementedError('Please use HDF reader for matlab v7.3 ’ NotImplemente…

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## [mne.epoch method](https://mne.discourse.group/t/mne-epoch-method/10470)

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**Author:** [@cola8yy](https://mne.discourse.group/u/cola8yy)\
**Replies:** 5\
**Last updated:** [November 1, 2024, 6:30am UTC](https://mne.discourse.group/t/mne-epoch-method/10470 "2024-11-01T06:30:06Z")

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:red\_question\_mark: If you have a question or issue with MNE-Python, please include the following info: MNE version: 1.8 operating system: e.g. macOS 12 / Windows 10 / Ubuntu 18.04 Hi, all epochs are dropped when …

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## [Processing OpenNeuro dataset: ValueError: Unknown mat file type, version 114, 46](https://mne.discourse.group/t/processing-openneuro-dataset-valueerror-unknown-mat-file-type-version-114-46/9121)

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**Author:** [@soccerplayer](https://mne.discourse.group/u/soccerplayer)\
**Replies:** 1\
**Last updated:** [July 26, 2024, 7:22am UTC](https://mne.discourse.group/t/processing-openneuro-dataset-valueerror-unknown-mat-file-type-version-114-46/9121 "2024-07-26T07:22:49Z")

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MNE version: 1.7.1 operating system: macOS I am using a openeuro dataset: OpenNeuro And I am trying to process the dataset: import os import mne Define the directory where the EEG data is stored data\_dir = os.path…

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## [Saving event\_id attribute in raw object](https://mne.discourse.group/t/saving-event-id-attribute-in-raw-object/7932)

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**Author:** [@axel](https://mne.discourse.group/u/axel)\
**Replies:** 9\
**Last updated:** [July 15, 2024, 4:02pm UTC](https://mne.discourse.group/t/saving-event-id-attribute-in-raw-object/7932 "2024-07-15T16:02:55Z")

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Hi, so I have a raw object that I’ve read in from an mff and preprocessed. After saving the object using the save() function and reading it back out, the event\_id parameter is no longer present. Any idea why this is the …

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## [Using fieldtrip processed .mat data with MNE](https://mne.discourse.group/t/using-fieldtrip-processed-mat-data-with-mne/6366)

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**Author:** [@saurabhr](https://mne.discourse.group/u/saurabhr)\
**Replies:** 3\
**Last updated:** [May 12, 2024, 8:57pm UTC](https://mne.discourse.group/t/using-fieldtrip-processed-mat-data-with-mne/6366 "2024-05-12T20:57:57Z")

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MNE version: ‘1.2.1’ operating system: macOS 12.6 I am using publicly available MEG data from Donder’s institute website. Data is already preprocessed using FieldTrip and I am able to load it in python using ma…

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## [Converting EDF to SNIRF file](https://mne.discourse.group/t/converting-edf-to-snirf-file/8602)

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**Author:** [@akontra](https://mne.discourse.group/u/akontra)\
**Replies:** 0\
**Last updated:** [April 8, 2024, 6:37pm UTC](https://mne.discourse.group/t/converting-edf-to-snirf-file/8602 "2024-04-08T18:37:04Z")

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Hi, I need help converting an edf file to snirf. tldr; A fNIRS recording session was accidentally saved to an .edf file. I’m now helping researchers convert this to a snirf file format so they can analyse the data. They…

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## [iEEG data import .iom file old xltek machine](https://mne.discourse.group/t/ieeg-data-import-iom-file-old-xltek-machine/8597)

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**Author:** [@Bastlon](https://mne.discourse.group/u/Bastlon)\
**Replies:** 0\
**Last updated:** [April 5, 2024, 3:29pm UTC](https://mne.discourse.group/t/ieeg-data-import-iom-file-old-xltek-machine/8597 "2024-04-05T15:29:17Z")

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Hello dear community, I have a problem with the import of a file format called .iom. We have intracranial EEG data that was recorded with an old mashine from xltek and the monitoring was done with a software EPWorks. I …

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## [Creating a raw object manually](https://mne.discourse.group/t/creating-a-raw-object-manually/8563)

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**Author:** [@averinkit](https://mne.discourse.group/u/averinkit)\
**Replies:** 8\
**Last updated:** [March 26, 2024, 5:41pm UTC](https://mne.discourse.group/t/creating-a-raw-object-manually/8563 "2024-03-26T17:41:39Z")

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I have some signals recorded in a text file where there are 2 columns and many rows, 1 column is time in ms, 2 column is amplitude. Is it possible to manually combine these signals so that I end up creating a raw object …

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## [Raw object interprets data incorrectly](https://mne.discourse.group/t/raw-object-interprets-data-incorrectly/8415)

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**Author:** [@averinkit](https://mne.discourse.group/u/averinkit)\
**Replies:** 8\
**Last updated:** [March 4, 2024, 9:57am UTC](https://mne.discourse.group/t/raw-object-interprets-data-incorrectly/8415 "2024-03-04T09:57:06Z")

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Hello, I have some text files with the EEG signal, let’s take two of them to start with. Inside of them signals stored as 2 columns with many rows. I want to create a raw object from them and when plotting them I want t…

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## [How to combine multiple files using OS for PSD analysis](https://mne.discourse.group/t/how-to-combine-multiple-files-using-os-for-psd-analysis/8364)

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**Author:** [@cmuniz](https://mne.discourse.group/u/cmuniz)\
**Replies:** 2\
**Last updated:** [February 19, 2024, 8:48pm UTC](https://mne.discourse.group/t/how-to-combine-multiple-files-using-os-for-psd-analysis/8364 "2024-02-19T20:48:14Z")

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MNE version: 0.24.0 operating system: macOS 14 directory = '/Users/cinthia/UO/Coding/PD\_offmeds' for dirpath, dirnames, filenames in os.walk(directory): for filename in filenames: if filename.endswith('.fif…

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## [Create a basic filtered file out of OpenBCI txt file](https://mne.discourse.group/t/create-a-basic-filtered-file-out-of-openbci-txt-file/8304)

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**Author:** [@Dhavit](https://mne.discourse.group/u/Dhavit)\
**Replies:** 7\
**Last updated:** [February 10, 2024, 7:00pm UTC](https://mne.discourse.group/t/create-a-basic-filtered-file-out-of-openbci-txt-file/8304 "2024-02-10T19:00:14Z")

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Hello codemates: I have a txt file created by OpenBCI EEG software. Now I want to analyze it with MNE. Does anyone know a basic sample where I can understand the first steps to read it, filter the seconds I am intereste…

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## [Difficulty reading event ids from .xdf file](https://mne.discourse.group/t/difficulty-reading-event-ids-from-xdf-file/8186)

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**Author:** [@lbailey25](https://mne.discourse.group/u/lbailey25)\
**Replies:** 5\
**Last updated:** [January 21, 2024, 8:24pm UTC](https://mne.discourse.group/t/difficulty-reading-event-ids-from-xdf-file/8186 "2024-01-21T20:24:59Z")

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Dear users, I am reading EEG data from an .xdf file, which was recorded using LSLrecorder. The EEG channels are in one stream, the event codes in another. I am using a combination of mne, mnelab, and pyxdf. Here is the…

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## [How to load in PSG data with .SLP format](https://mne.discourse.group/t/how-to-load-in-psg-data-with-slp-format/8100)

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**Author:** [@Xjhnorman](https://mne.discourse.group/u/Xjhnorman)\
**Replies:** 1\
**Last updated:** [January 9, 2024, 4:14pm UTC](https://mne.discourse.group/t/how-to-load-in-psg-data-with-slp-format/8100 "2024-01-09T16:14:53Z")

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How to load in PSG data with .SLP data format: MNE version: e.g. 0.24.0 operating system: e.g. macOS 14.2.1 The image shown above was one of my data sample of PSG data. I am new to the field. I have tried various …

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## [Issue when reading Persyst files - wrong position of gaps](https://mne.discourse.group/t/issue-when-reading-persyst-files-wrong-position-of-gaps/8059)

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**Author:** [@silvalev](https://mne.discourse.group/u/silvalev)\
**Replies:** 3\
**Last updated:** [January 5, 2024, 6:20pm UTC](https://mne.discourse.group/t/issue-when-reading-persyst-files-wrong-position-of-gaps/8059 "2024-01-05T18:20:17Z")

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Hi, I am using mne.io.read\_raw\_persyst function to read a recording exported from Persyst and noticed an inconsistent location of a gap within the recording. Some context The data was originally recorded using a Mober…

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## [can't import my set file using read\_epochs\_eeglab()](https://mne.discourse.group/t/cant-import-my-set-file-using-read-epochs-eeglab/6718)

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**Author:** [@HSUkin](https://mne.discourse.group/u/HSUkin)\
**Replies:** 17\
**Last updated:** [November 1, 2023, 9:22pm UTC](https://mne.discourse.group/t/cant-import-my-set-file-using-read-epochs-eeglab/6718 "2023-11-01T21:22:00Z")

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import os import mne import numpy as np import pandas as pd import matplotlib.pyplot as plt os.chdir("D:/222experiment\_material/EEG\_DATA") print(os.getcwd()) file\_path = './practice/hulike/data/MC\_H01.set' raw = mne.read…

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## [mne.io.read\_raw\_gdf() error](https://mne.discourse.group/t/mne-io-read-raw-gdf-error/7674)

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**Author:** [@xicheng105](https://mne.discourse.group/u/xicheng105)\
**Replies:** 1\
**Last updated:** [October 17, 2023, 9:52am UTC](https://mne.discourse.group/t/mne-io-read-raw-gdf-error/7674 "2023-10-17T09:52:52Z")

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Hello everyone, I plan to import the BCI competion 4 2a dataset, and I use: mne.io.read\_raw\_gdf('A01T.gdf') I got the error massage: UFuncTypeError: Cannot cast ufunc 'clip' output from dtype('float64') to dtype('uin…

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## [How to read event file of bdf format?](https://mne.discourse.group/t/how-to-read-event-file-of-bdf-format/7672)

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**Author:** [@North](https://mne.discourse.group/u/North)\
**Replies:** 2\
**Last updated:** [October 14, 2023, 12:14pm UTC](https://mne.discourse.group/t/how-to-read-event-file-of-bdf-format/7672 "2023-10-14T12:14:44Z")

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MNE version: 1.5.1 operating system: Windows 11 My EEG data contains two files, one is data.bdf, the other is evt.bdf. I can load data.bdf by mne.io.read\_raw\_bdf, but this raw file does not contain event information. H…

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## [How to read Nicolet data ending in. e](https://mne.discourse.group/t/how-to-read-nicolet-data-ending-in-e/5333)

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**Author:** [@yonglongwen](https://mne.discourse.group/u/yonglongwen)\
**Replies:** 6\
**Last updated:** [October 10, 2023, 9:34am UTC](https://mne.discourse.group/t/how-to-read-nicolet-data-ending-in-e/5333 "2023-10-10T09:34:00Z")

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MNE version: e.g. 0.24.0 operating system: e.g. Windows 10 Since the data produced by Nicolet device ends in.e instead of.data, MNE official has not updated this kind of method, is there any other method

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## [Events array contains similar event ids for 400 different events.](https://mne.discourse.group/t/events-array-contains-similar-event-ids-for-400-different-events/7520)

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**Author:** [@madi](https://mne.discourse.group/u/madi)\
**Replies:** 4\
**Last updated:** [September 15, 2023, 4:51pm UTC](https://mne.discourse.group/t/events-array-contains-similar-event-ids-for-400-different-events/7520 "2023-09-15T16:51:55Z")

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I am working on eeg visual stimulus data. the images are shown 10 ×40 from each 40 classes. The events array returns the same exact code 65281 for all the 400 events except for first 2 and last one event, which shows no…

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## [Error reading \*.cnt eeg file](https://mne.discourse.group/t/error-reading-cnt-eeg-file/2796)

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**Author:** [@kingjr](https://mne.discourse.group/u/kingjr)\
**Replies:** 4\
**Last updated:** [August 9, 2023, 6:04pm UTC](https://mne.discourse.group/t/error-reading-cnt-eeg-file/2796 "2023-08-09T18:04:47Z")

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I’m trying to read a cnt EEG file with mne.io.read\_raw\_cnt and get “UnicodeDecodeError: ‘ascii’ codec can’t decode byte 0x93 in position 6: ordinal not in range(128)”, When debugging, it looks like this ~/opt/anaconda3…

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## [problem with loading data MNE sample](https://mne.discourse.group/t/problem-with-loading-data-mne-sample/7269)

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**Author:** [@elv](https://mne.discourse.group/u/elv)\
**Replies:** 7\
**Last updated:** [July 25, 2023, 4:30pm UTC](https://mne.discourse.group/t/problem-with-loading-data-mne-sample/7269 "2023-07-25T16:30:04Z")

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Hello. When I run MNE data, in first step(sample\_data), i face with these errors: 1)TLS/SSL connection has been closed (EOF) (\_ssl.c:997) 2)HTTPSConnectionPool(host=‘osf.io’, port=443): Max retries exceeded with url: …

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## [Incorrect eeg layout from mne.io.read\_raw\_curry](https://mne.discourse.group/t/incorrect-eeg-layout-from-mne-io-read-raw-curry/7252)

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**Author:** [@pvly](https://mne.discourse.group/u/pvly)\
**Replies:** 17\
**Last updated:** [July 21, 2023, 10:50am UTC](https://mne.discourse.group/t/incorrect-eeg-layout-from-mne-io-read-raw-curry/7252 "2023-07-21T10:50:08Z")

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Hello, I’m trying to work on the data from Curry 8. import mne fname = "tslin0713.cdt" raw = mne.io.read\_raw\_curry(fname, preload = True) layout\_from\_raw = mne.channels.make\_eeg\_layout(raw.info) layout\_from\_raw.plot(…

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## [To set my montage correctly](https://mne.discourse.group/t/to-set-my-montage-correctly/7202)

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**Author:** [@Chauncy](https://mne.discourse.group/u/Chauncy)\
**Replies:** 2\
**Last updated:** [July 9, 2023, 8:56pm UTC](https://mne.discourse.group/t/to-set-my-montage-correctly/7202 "2023-07-09T20:56:02Z")

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MNE version: 1.3.0 operating system: macOS 11.2 I want to set my montage with default ‘standard\_1020’. My data has 62 channels, corresponding to 64 channels but ‘M1’ and ‘M2’ are missing. My channels are \[‘FP1’, ‘FPZ…

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## [mne.io.read\_raw\_curry \*Curry 8 Float](https://mne.discourse.group/t/mne-io-read-raw-curry-curry-8-float/3964)

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**Author:** [@hanneke](https://mne.discourse.group/u/hanneke)\
**Replies:** 7\
**Last updated:** [July 8, 2023, 8:03am UTC](https://mne.discourse.group/t/mne-io-read-raw-curry-curry-8-float/3964 "2023-07-08T08:03:40Z")

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Dear all, I have trouble loading data that has been saved with Curry 8 default format (CURRY Raw Float Format \*.cdt). Since others have to do the EEG recordings and to make things on that end as fool-proof as possible I…

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## [Importing raw data from FieldTrip \[Distorted data\]](https://mne.discourse.group/t/importing-raw-data-from-fieldtrip-distorted-data/6502)

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**Author:** [@neural-decoder](https://mne.discourse.group/u/neural-decoder)\
**Replies:** 12\
**Last updated:** [March 15, 2023, 4:49pm UTC](https://mne.discourse.group/t/importing-raw-data-from-fieldtrip-distorted-data/6502 "2023-03-15T16:49:01Z")

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I’m trying to import MEG data from fileldtrip. I’m reading raw/mhd file in Matlab and exporting raw data to fif file: cfg = \[\]; cfg.dataset = infile; hdr = ft\_read\_header(infile); bad\_channel = find(\[hdr.orig.ch.flag\]=…

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## [Trouble reading raw file - AttributeError: 'NoneType' object has no attribute 'kind'](https://mne.discourse.group/t/trouble-reading-raw-file-attributeerror-nonetype-object-has-no-attribute-kind/6314)

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**Author:** [@anapesq](https://mne.discourse.group/u/anapesq)\
**Replies:** 1\
**Last updated:** [February 8, 2023, 5:04pm UTC](https://mne.discourse.group/t/trouble-reading-raw-file-attributeerror-nonetype-object-has-no-attribute-kind/6314 "2023-02-08T17:04:53Z")

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Hello, I am having an issue when using mne.io.read\_raw\_fif to open a file recorded in a Elekta Neuromag/MEGIN system. I am getting the following error: File “/home/pesquita/anaconda3/lib/python3.7/site-packages/mne/io/…

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## [Conversion to .fif format in MNE](https://mne.discourse.group/t/conversion-to-fif-format-in-mne/6241)

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**Author:** [@nwolp](https://mne.discourse.group/u/nwolp)\
**Replies:** 3\
**Last updated:** [February 3, 2023, 4:37pm UTC](https://mne.discourse.group/t/conversion-to-fif-format-in-mne/6241 "2023-02-03T16:37:56Z")

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Hello, I have a problem linked to the conversion of files into .fif format in MNE, in a way that these are readable in fieldtrip. My original files are .csv tables with samples as rows and 8 EEG channels and one trigge…

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