writecell command is not working.

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When trying to write cell with only entity it does not work. if I have more than one entity it works fine.
For e.g.
Hdr1 = {'Test_1','Test_2'};
Hdr2 = {'Test_1','Test_2','Test_3'};
Fn = "Testing.xlsx";
writecell(Hdr1,Fn,'WriteMode','Append')
writecell(Hdr2,Fn,'WriteMode','Append')
the above code works just fine and the output excel sheet has two rows.
However the same code with one change:
Hdr1 = {'Test_1'};
Hdr2 = {'Test_1','Test_2','Test_3'};
Fn = "Testing.xlsx";
writecell(Hdr1,Fn,'WriteMode','Append')
writecell(Hdr2,Fn,'WriteMode','Append')
the above does not work and gives error. The only difference I see is that Hdr1 has only one element instead of two elements.
Error:
Error using writecell (line 195)
Unable to determine range. Range must be of the form 'A1' (cell), 'A:B' (column-select), '1:5' (row-select),
'A1:B5' (rectangle-select), or a valid named range in the sheet.
  3 Comments
Pappu Murthy
Pappu Murthy on 15 Dec 2021
The last line is giving error.

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Accepted Answer

Image Analyst
Image Analyst on 15 Dec 2021
Looks like it expects the data to be inserted to have the same number of columns as the existing stuff above it. You can use xlswrite() instead. I'm pretty sure xlswrite() just blasts over existing stuff without caring about that. However you will have to call xlsread() first to find out how many rows are there already and make sure you write into the row one below the last row.
  5 Comments
Pappu Murthy
Pappu Murthy on 15 Dec 2021
The second suggestion worked just fine. Thanks. We can close this.

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