Remove white space from a file:

Find ^\s* and Replace with ''
#To replace numbers
^[0-9]+

1. Go to Search -> Replace

2. Select "Regular expression" under Search mode.

3. Use^\s*for "Find what" and leave "Replace with" blank.

4. Click Replace all

• ^ means beginning of the line

• \s* means any number (even 0) of whitespace characters. Whitespace characters include tab, space, newline, and carriage return.

Or

Go to Edit

Blank Operations > Click Trim Leading Space