Though Photoshop doesn't directly open InDesign project files, the two programs are closely related. Both are part of Adobe's Creative Suite 6 package, so the programs share common file formats.

INDD files, associated with Adobe InDesign, contain document layouts, formatting, text, and images, typically used for creating print publications like brochures and magazines. Adobe InDesign, a ...

I just tried to open about 90 different INDD files in Photopea and it works well. Please, provide some proof of the issue, e.g. the INDD file which can not be opened.

A file with the INDD extension is an Adobe InDesign document file. InDesign is a page layout application for designing print products such as flyers, magazines and brochures. CorelDraw is an ...