Error: The specified data range is invalid

I am writing a code where Matlab gives output in an excel file. The output is in the form of various values that are to be put in adjacent cells in excel. I used below command:

cell = sprintf('G%s',3+num2str(i)); xlswrite('Data_Management.xlsx',RPMhist1,'Data',cell);

Here, the output is obtained from G4 cell. There are multiple files from which the code is getting input. (These files are in different form and thus I need to get the output in excel)

I am getting below error: Error using xlswrite (line 219) The specified data range is invalid or too large to write to the specified file format. Try writing to an XLSX file and use Excel A1 notation for the range argument, for example, ‘A1:D4’. Error in SeparateChannels (line 37) xlswrite('Data_Management.xlsx',RPMhist1,'Data',cell);

[xi]

You need to provide information about RPMhist1. try RPMhist1='A', the above code shows no errors.