Data File Find And Replace dialog box

Find
Type search string.
Replace
Check to replace found text with the text typed into the corresponding field.
Fwd
Search forward from the current position.
Back
Search backward from the current position.
Replace fwd
Replace the next instance found forward from the current position.
Replace back
Replace the next instance found backward from the current position.
Replace all
Replace all instances.
Match case
Check this to specify that the search is case sensitive.
Hex
Check this to search for hexadecimal instances of the text specified in the Find field.
Within offsets
Check this to search between the offsets specified in the corresponding Left and Right fields.