Issue Description
You have received a TXT file from a surveyor and on import it has given an error, 'Archicad cannot interpret the data in this file'
Solution
Open it with a text editor and look for these things:
1) Only numerical input Every line with a non-numeric item will be automatically counted as a comment.
2) Only three columns X Y and Z, Remove all headers and 'extra' columns
3) Consistent separator use Every line needs the same separator semicolon, space, or tab.
4) Remove all rows that have a 0,0,0 for X Y and Z
Your edited file should look like this, 3 simple columns of X Y and Z data