Parsing XML File

I am looking to parse out the following sequence of data from an XML file. These are title headers and getting stuck with the regex coding. Any help appreciated!!

<IRS1120ScheduleL>

Looking to parse: ScheduleL

<IRS1120ScheduleM1>

 Looking to parse: ScheduleM1

<IRS1120ScheduleG documentId="IRS1120SchG">

 Looking to parse: ScheduleG