Inaccurate results when writing xls through writetable

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Hello everyone.
I am using Matlab R2021b. I write then save .xls files from a table using writetable. After saving, I write again on the same file but without deleting the older version first. If I do so, I get strange results in some cases, e.g., the last cell gets duplicated, some characters are added to some cells. If I delete the older version before saving the new one, I have no issues. Is this a known issue?
Yazan on 21 May 2022
You guessed it. I was not setting "WriteMode" to "overwritesheet". Thank you.

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Accepted Answer

Voss on 21 May 2022
From the documentation for writetable:
  • If filename is the name of an existing spreadsheet file, then the writing function writes the data to the specified location, but does not overwrite any values outside the range of the input data.
Does that explain the behavior you are seeing?
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Yazan on 21 May 2022
It does indeed. Rechecked the documentation: the default value of "WriteMode" is "inplace" for xls, and not "overwritesheet", as I was assuming. Apparently, I was overwriting an existing table with one of one less row, which caused the impression that the last cell was getting duplicated. Appreciate the help.

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