Why Import Tool can't read csv files?

Previous versions can read csv files. But the new ones show the error "can't read utf16-LE". But the first line of data is read correctly. The first line:

2016.07.04 00:00,1.11298,1.11333,1.11297,1.11333,7,0

[Vandana Rajan]

What do you mean by previous and new versions? MATLAB versions? Can you please specify the MATLAB version you are using?

[Alexander]

Old: 2015 (32x), new: 2017, 2018 (64x both)

[Adam Danz]

Could you upload the csv file?

[Alexander]

OK

[Adam Danz]

If you open the file and save it as "CSV (Comma delimited)" the import tool will work. However, if you have a bunch of files and can't convert all of them, perhaps this will help:

https://www.mathworks.com/matlabcentral/answers/270857-how-to-read-16-bit-text-with-matlab

[Alexander]

You didn't write in which program I should open the file.

1) in MatLab - the same error.

2) in Excel. After saving the file size reduced a half, MatLab reads the data.

3) in Notepad. MatLab can't read Unicode (both LE and BE), only ANSI and UTF-8.

[Adam Danz]

I opened the file in Excel, saved as csv, then imported it to Matlab.