Match and Replace

[Orion Pobursky]

Where I find tool|solution. That told me Did I Can
replace 3737c01.dat /Technic Axle 10/ with 3708.dat /Technic Axle 12/
replace Plate 2 x 4 /3020.dat/ with too Plate 2 x 2 /302226.dat/

EDIT: Did should work as "Find compatible bricks" in Stud.io

You can open the DAT/LDR file in Notepad or some other word processor and do a simple find and replace.  If you don't use Notepad, just make sure to save the modified file as a plain text document and not something else.