importdata not correctly importing a data file

I'm using importdata to read in a data file. Here is the command:

SomeData = importdata('DataFileName',' ',1);

This data file has 11 columns and is very, very, very long. I thought maybe the size of the file was the problem, but I checked the file size and it's actually smaller than another data file of the same format that works fine with the same importdata command that I have above.

PS... Is there some file size limit that shouldn't be exceeded for importdata? I had one huge file that seemed corrupted when I imported it using importdata.

[Star Strider]

What isn't working?

Does it import any data at all?

Have you tried textscan?

[Oleg Komarov]

What does "not correctly importing" mean?

What you think is correct might not be common knowledge to the contributors of the forum, don't assume we saw your file.