Avoid issues with importing files?

Hi all!

Let me first just explain what I am attempting to do.

(First line): Gathering a whole bunch of files. (Second line): Sorting these files how I require them. (Third Line): importing and assigning these files.
Quick note, the files that I am importing are just a list of 15 numbers, each number on a different line. Also, in folders I have files with data from 0 to 1 all spaced by 0.005.

Now here comes the issue. You can see that when I evaluate the assigned filesimported[0.0], filesimported[0.65] and filesimported[0.17], it all works fine. However, when I try to evaluate filesimported[0.175] it seems to be unassigned which doesn’t make sense.
What is even more confusing is if I treat 0.175 individually, but in the same as the Do Loop would (final line) then it will assign data to filesimported[0.175].

Any help would be so greatly appreciated.

Haydn