Need to reformat data imported from file

- How do I use a loop to read a line until an empty cell or a given word?
- What is the command for until end of file?

Here is the detailed situation: I have a word file which contains data generated by a sampling equipment. However, while all the data is easily imported, the final result still needs sorting, mainly because one line of data gets to be on a few lines of text, which is resulting in a table where one row is actually the content of two or three rows...

I know it could be done manually, but a few thousand readings definately makes it worth while to write a few lines of programming. While I know I can write a loop, I cannot simply base it on an amount of cells or lines because the original sampling device sometimes omits a few items.

So the loop needs to read a line until an empty cell, cut and paste all following data on the next lines at the end of this line, and erase those lines once copied, then jump to the next.