Numbering of images with file names

[Kaufmann5]

Hello, I would like to renumber the image files in a folder to create a changed order in the folder. However, the existing file names should be retained. Here's an example:
old name "MV5A9512.jpg" new name "001_MV5A9512".
Is this possible using the “Rename Stable” function. Thank you for the information about this.

[xnview]

you can use 'Batch rename'

[Kaufmann5]

With the "Batch rename" function, the entire old name is replaced by a number and a uniform new name. I would like a new numbering (no problem with the function) and continue to use the old name. As described in the example. If this can be achieved with the “Batch Rename” function, I would be happy to see an example entry.

[cday]

You basically insert xxx_ (for three leading digits) as a prefix to a template created using the top Name template option set to the existing Filename With Extension option...

Always test using copies of images...

[Kaufmann5]

Thanks for your help.