Hi JKSJIM,
I understand you can see the dotted lines for the rows but not for columns. The dotted lines that you are referring are the page break lines which helps define the print area.
In the said Excel workbook, click View>Page break Preview, please check if it shows the dotted lines for rows and column.
Besides, click File>Options> Advanced, scroll down to the section – “Display options for this worksheet”, ensure option “Show page breaks” is checked.
If the above option is set correct, go to Page Layout tab, click Breaks>Rest all page breaks. This procedure resets the worksheet to display only the automatic page breaks.
Let me know the status.
Regards,
Neha