Hello,
I'm trying to calculate PET, and for that i created a text file containing:
date,time,air temperature,relative humidity,wind velocity and the mean radiant temperature.
the first problem i faced after the input of the data file and clicking New, was this message "Read error from datafile!(Date format?Number of columns?)", but after going through this forum I changed the "tab" separator in the text file to ";". Now I'm not getting this message but instead the software just stop working (freezes).

what I have already tried is:
-running it as administrator
-reducing the size of the data to just 4 rows of measurements
-test it on another laptop
-ensure that there is no blank spaces within the text file

Till now I can't figure out what might be the problem, so your reply to this message would be highly appreciated
Thank you in advance for your time.

P.S.Sample of my data
date;time;Ta;RH;v;Tmrt
25.2.2016;08:00;26.8;57.9;0.8;27.0
25.2.2016;08:05;26.8;57.9;0.9;27.0
25.2.2016;08:10;26.8;57.7;1.0;27.1
25.2.2016;08:15;26.8;57.6;0.7;27.1

Hello again,
Today I started from scratch, and RayMan is working fine.

The crashing problem was related to the text file type, where previously i was saving the data file from excel as "Unicode Text(*.txt)" which seem to be incompatible with RayMan.

Now I am saving the data as "Text (Tab delimited)(*.txt)" and making sure to tick the "Headlines" box on the RayMan datafile input window which was causing me the "Read error from datafile!(Date format?Number of columns?)" message, and now my problem is solved.

Thanks.

I hope this will help somebody the same way I found help in other posts in this forum.

Thanks.

i'm just dropping a reply to say thank you.... thank you,thank you,thank you,thank you,thank you,thank you,thank you,thank you,thank you,.. I've been at it for hours and your solution is just perfect.

thanks again
Yara

I am glad to be of help