Range FORMS is an online form builder with file upload functionality. Users can collect files from their respondents through form submissions by adding file upload fields to the form.
All supported file extensions of the File Upload field are located in the Advanced tab, within the field editor. To allow only certain file extensions upon upload, select the field in the form layout and go to the Edit Field panel on the left. Next, click the tab Advanced and tick the box Accept only the following extensions.
Afterwards, use the drop down to check the extensions you want to use.
Here is a list of the file extensions that the File Upload supports:
.3gp, .ai, .avi, .bmp, .cat, .cdr, .cod, .cpt, .csv, .dcm, .doc, .docx, .dpt, .dwg, .dxf, .eps, .exp, .flv, .gif, .hwp, .ico, .iges, .igs, .ipt, .jpeg, .jpg, .kit, .kmz, .m4a, .mdl, .mobi, .mod, .mov, .mp3, .mp4, .mpeg4, .msg, .oad, .oadx, .odt, .ogg, .org, .ott, .pdf, .png, .pps, .ppsx, .ppt, .pptx, .prt, .psd, .pub, .rar, .rtf, .slddrw, .sldprt, .step, .stf, .stl, .stl, .stp, .stp, .tif, .tiff, .txt, .wav, .wmv, .wpd, .wps, .x_t, .xls, .xlsx, .zip