File types roadblock

Hi, first left me ask, does it support non-image files? I have been trying to set it up to receive excel files as well as images. I have set this on the CF7 backend
[mfile* uploads-photos-files limit:2000000 max-file:5|jpeg|png|jpg|xlsx|xls|csv]

But when i try to upload an excel file i get this:
File name and type [Budget Template for proposals.xlsx (10.20KB)]

The error am getting [Uploaded file is not allowed for file type]
Let me know if am trying to do what the plugin doesn’t but if it accepts other file types apart from images, what could be the problem