is there a quick way to inspect a text document and change all [1] to [01] and all [2] to [02] etc something along the lines of what i have set up below (which doesn't work) - or should i be looking at another approach altogether?

cFile = Filetostr("C:\mytext.txt") 

cFile = Strtran(cFile,Chr(202),"E") && using this code i can change only one character at a time

cFile = strtran(cFile,"[5]","[05]")  && can i use the same approach for character string - perhaps using chrtran??

thanks k