Regular Expressions 101

Explanation
Pro

Positive Lookbehind(?<=Total\r?\n\r?\n?)

Totalthe literal text Total (case sensitive)

\r?optionally matches a carriage return (ASCII 13)

\na line-feed (newline) character (ASCII 10)

\r?optionally matches a carriage return (ASCII 13)

\n?optionally matches a line-feed (newline) character (ASCII 10)

Group 1(.+)

.+any character (except for line terminators), repeated at least once

Positive Lookahead(?=\s+\d+\s+\d+\s+[A-z]{3})

\s+any whitespace character, repeated at least once

\d+a digit, repeated at least once

\s+any whitespace character, repeated at least once

\d+a digit, repeated at least once

\s+any whitespace character, repeated at least once

Character Class[A-z]{3}

{3}matches exactly 3 characters from the set below:

A-zone character from A (65₁₀) to z (122₁₀) (case sensitive)

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

26 tokens

(?<=Total\r?\n\r?\n?)(.+)(?=\s+\d+\s+\d+\s+[A-z]{3})

New

Item Description Quantity Price Per Total

Various paper supplies 1 269033 USD 269033 USD

Item Description Quantity Price Per Total

Various paper supplies 1 269033 USD 269033 USD