insert character string based on position w/o Java

Is there a way to inert a character string based on file or directory name character position, for example to change 20170126 to 2017-01-26

I don't know Java.

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Assuming that all your files are of the format yyyymmdd, and you want to change them to yyyy-mm-dd, you can just use two separate Add methods:

Method 1: Add
Add: -
At index: 5
Apply to: Name

Method 2: Add
Add: -
At index: 8
Apply to: Name

That should do the trick.

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