The file is a simple calculation of the Fibonacci series. If you go to line 69 you will see that only from line 69 to line 77 is a clear display error.
Visual_Error.ods (application/vnd.oasis.opendocument.spreadsheet), 24.44 KB, created by zjs.no7 on 2018-05-28 10:56:03 UTC
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Creator: zjs.no7
Created: 2018-05-28 10:56:03 UTC
Size: 24.44 KB

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Attachments on bug 117819: 142336