You can use the search option to look for a particular string in a data file. You can search forwards or backwards through the data file.
Additionally, you can search your file for a particular string and replace it with another specified string. If you enter a replace string that is shorter than the search string, the Data File Editor fills the empty bytes with padding characters. Replace strings longer than the search string are truncated. This is a way of preserving the consistency of field positions within the record.
For indexed files only, you can search on the current key of reference.