@acer Thank you for your help and guidance. I hope one day I will have 10% of your Maple knowledge.

@acer thank you for the additional clarifications. Have a nice weekend.

@acer First I would like to thank you for your help, you did not only found out why I couldn't import the txt file but also did the cleanup!

I have two small remaining questions:

- how did you find out that the zero-byte null was the cause? That would help me if I encounter this issue in future.

- why was it possible to import it in Excel but not in Maple, should one consider this a strong point or a weak point of Maple? Strong because it points you towards a potential problem, weak because it asks for additional steps outside maple.

Once again thank you for your patience an help

Dear power users, sorry to bother you again but could someone explain to me why I cannot import this txt file whereas this is no problem in e.g. Excel and other programs?

Thank you in advance for your insights

@acer Thank you for your answer. I do apologize for being unclear. I would like to import the headers + the 5 columns. Then: - I would like to remove all rows in which one of the columns holds no value or a value lower than 0

- after that I would like to isolate the segment (Time - Load) that holds the part with a load of approximately 15 N (starting and ending with a value of approximately 0 N

- finally, I would like to calculate the slope of the last part of the measurement starting from a load of approx 0 N to the maximum load.

I do hope I have been more clear this time as I do not want to waste you time.

Happy Easter

@acer thank you for your prompt reply. I would like to import the file as it is and then clean it up in Maple. Currently I first convert the file into an Excel file, clean it up, and import it into Maple. I would like to avoid the Excel step, if possible. But maybe it is more cumbersome to do the cleaning in Maple, I would like to know the opinion of power users like yourself. As mentioned before I was also wondering whether it would be possible to import several txt files at the same time.

Happy Easter