Invalid or unsupported file

[EFFS]

I made some pictures of a bathroom showroom with my canon 700D. I would like to see them on a TV screen, but they won't open. This message appears: 'Invalid or unsupported file'.

I can open pictures taken with my Canon 5DMKIII.

I have changed file size and name but it doesn't work.

Might the TV software not recognize the 700D? I can't find an option on my TV to adjust this if this is the case.

Could someone help me please?

[hernhombeecaryb]

You are likely saving RAW images to the camera's card, while the TV probably reads only JPG files. 

1) Change the camera's image mode from RAW to L (Large JPG) OR

2) Connect to the TV using an HDMI cable, so the file format becomes irrelevant.