There are two things that need to be fixed.
1. You state that you are "using the Write Character to spreadsheet", but your code shows the "write to spreadsheet file" which requires an array of numbers. You need to replace it with the "Write Characters to File" which will take only a single string.
2. Insert Array to Spreadsheet String to convert the array of strings into a single string. Specify a format of %s.
Michael Munroe
Certified LabVIEW Developer
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