Is is possible to export Inkscape files for inDesign?
According to Adobe [1], InDesign does not support importing SVG files. It does, however, support importing EPS files, which Inkscape can export to (just choose EPS from the drop-down box in the "Save as ..." dialog).
You can import EPS files into inDesign. In Inkscape go to file > save as, then choose EPS from the dropdown menu.
In inDesign, go to file > place and choose your exported EPS.
There is also another file format that works well for exporting to InDesign, it is PDF, to save as PDF, select file > save as, then choose Portable Document Format(.*pdf) from the drop down menu.
PDF documents can be placed in InDesign. Even If you choose to combine PDFs as a single document individual pages can be placed from this document in InDesign.