Common Issue

However there are a few things you can do to still view this:

When opening the file click "Don't Convert"
on the dialogue that pops up
Datafile Excel Scientific
Expand the Column width to accommodate larger values:
Datafile Excel Expand
Change the column type to "0":
Datafile Excel Text "More number formats" → "Custom" → "0"
Opening the file as a csv (notepad):
Datafile Excel Notepad