Quick Fit

Excel columns have a default column width of 8.43 characters, or 64 pixels. That means many entries aren't completely visible. (If there's no data to the right of a long entry, Excel will display the entire entry.) You could change the column's width, but you might spend a lot of time guessing at the appropriate width to display everything.
You can make it easy on yourself by double-clicking the right border of a column's header cell (the gray cell at the top of the column). Doing so will automatically adjust the column's width to display the longest entry in that column.