How can I convert a char into numbers

if i have a char of numbers at a point in a cell .... say 123519. how can i change it into numbers(its actually a time). how can i then write the numbers in hr:min:sec format so that i have 12:35:19... is there a simpler way I can get that same format?

Answer 1

[Walter Roberson]

mycell = {'123519', '123525', '041148'}

result = regexprep(mycell, '(\d\d)(\d\d)(\d\d)', '$1:$2:$3');