rename filenames in bulk with chronologically numbers?

Thanks for your question. I hope I have understood what you want to accomplish.

The topic title and your example suggest that you want to change the actual file names associated with Media Library items. The current MLA version does not have any features to rename the actual files and I have no plans to add such a feature. Here is an earlier topic with more details:

Bulk image name change

Here’s another topic with links to several additional “renaming” topics:

Attachment update action hook?

I am very interested in knowing why you want to “rename them in chronological order“, losing whatever information the original names provide along the way. There are many other ways to handle chronology in WordPress, and an alternative might be possible for your application. Here is one example, and there are others if something like this would help with your application:

Ordering by ‘Publication Date’ Custom Field

I hope the above topics and suggestions are helpful. I will leave this topic unresolved until I hear back from you. Thanks for your interest in the plugin.

oh ok, i’ll try the custom field thing. I actually found another plugin that renames the files for me. thanks anyway.

Thanks for your update. I am marking this topic resolved, but please update it if there’s anything else MLA can do to help.