Find and Replace Text Find this: Enable regular expression.Replace with: Global matching. Case sensitive. Enter your text to be found and replaced here. Enter text to be searched for in the "Find this:" text box above. Enter replacement text in the "Replace with:" text box above. Check "Global matching." to replace all matches. Otherwise, only the first match will be replaced. Check "Case sensitive." to make "Find this:" case sensitive. Check "Enable regular expression" to enable regular expressions* in both find and replace fields. *Regular expressions are user defined "find and replace" patterns such as find a or b to replace with c. Note: For files too large to successfully load into this text field, use the "Big File Tool" link below. Privacy of Data: This tool is built-with and functions-in Client Side JavaScripting, so only your computer will see or process your data input/output. Unix Dos. Wrap is on off.