Requires at least 2 input arguments. FILENAME must be a character vector or string scalar. The input cell array cannot be converted to a matrix. Cannot open file {0}. Attribute {0} requires a matching value. Invalid attribute tag: {0}. Newline must be either ''pc'' or ''unix''. {0} is not a valid attribute or delimiter. Delimiter must be a single character. {0} is not a valid attribute or row offset. {0} is not a valid attribute or column offset.