InDesign is a popular document creation program from Adobe. However, IDML is an XML-based format that can be opened in other programs such as Inkscape or Sketch. If you need to convert your InDesign file to IDML, there are a few different ways to do it. Here, we'll outline a few different convert indd to idml services to help you get the job done.
There are many online services that offer to convert indd files to idml format. This is usually done by exporting the file from InDesign to a format that can be read by IDML-compatible software, such as Adobe InDesign CC.
There are many different services that can be used to convert an INDD file to an IDML file. Some of these services are free, while others are paid. Which service you use will depend on your needs and budget. However, all of these services should be able to help you convert your INDD file to an IDML file so that you can open it in Adobe InDesign.