However, ZIP is OK, so anything can get uploaded indirectly, and therefore there is little reason to ban anything.
Now that pushfile> downloads are allowed in KB, most filetypes should be allowed similar to the Forum Usage Guide (4252):
Many file types are allowed including all FH custom data files and gedcom files (ged),
image files such as GIF, JPEG, JPG, PNG, TGA, TIF, TIFF,
plain text files such as XML, TXT, LOG, JS, CSV, CPP,
document files such as DOC, DOCX, ODG, ODP, ODS, ODT, PDF, PPT, PPTX, RTF, XLS, XLSX
and a few more besides.