Tools > Search and Replace > Enable the regex option
Search in field <track#> for 0(\d+) and replace with $1
That tool has preview support, but in case you are more comfortable with viewing the results in a virtual tag first:
$RxReplace(<track#>,"0(\d+)","$1")
I already spend hours on end on social media. Might as well spare a few of those to a greater purpose here.