How to print gridlines in Writer table

I can’t get Libre Writer to print gridlines in the table I inserted in the document. Any suggestions? Thanks.

Have you seen LibreOffice Help on borders?

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If you can’t see the gridlines in Print Preview then you need to add borders. Click in a cell and select the whole table with Ctrl+A, right-click and select Table Properties. In the Borders tab click on the Presets for “Set Outer Border and all Inner lines” which is the square with a black vertical and a black horizontal line through it. OK out.