Error found - cell type [xyz] not supported

Full message text

Error found in [XYZ] -- Cell of type [XYZ] not supported

Resolutions Steps

Case 1 - Weirdness of cell format or cell data

This one is pretty straightforward to resolve usually. The parser will tell you right where the offending cell is (in 95% of cases) and you'll just want to remove it, correct its format or pattern, or remove any weird / special characters.