Here is a list with numbers separated with a "-".
Problem: Remove "-" from list.

  1. Select all numbers to be converted.
  2. Go to "Home" tab.
  3. Left click with mouse on Find & Select.
  4. Select Replace (Ctrl + H)

  5. Type "-" in "Find what:" box.
  6. Type nothing in "Replace with:"

  7. Click "Replace All".
  8. The same list without "-".