A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
Follow https://support.microsoft.com/en-us/excel/get-started/hide-or-show-rows-or-columns
Unhide columns
- Select the adjacent columns for the hidden columns.
- Select and hold (or right-click) the selected columns, and then select Unhide.
- Or, double-click the double line between the two columns where hidden columns exist.
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hth
Marcin