$ file QmNXd16aqe6a353cshxsuM2YaiX9MRAUp1NB5teornHEMV
QmNXd16aqe6a353cshxsuM2YaiX9MRAUp1NB5teornHEMV: data
$ binwalk QmNXd16aqe6a353cshxsuM2YaiX9MRAUp1NB5teornHEMV
DECIMAL HEXADECIMAL DESCRIPTION
--------------------------------------------------------------------------------
37 0x25 TIFF image data, big-endian, offset of first image directory: 8
20756 0x5114 Copyright string: "Copyright Apple Inc., 2017"
file doesn’t know what it is, binwalk thinks it is a tiff, however gimp wont open it because:
Not a TIFF or MDI file, bad magic number 49091 (0xbfc3)
I belive your file is just corrupted, or at least in a really weird tiff variant that isn’t supported by the browser nor gimp.