In Excel if you need to hide data or workings sheets you can hide multiple sheets in one action. Unfortunately Excel won’t let you unhide multiple sheets in one step (even in the latest version). To get around this limitation you can use a macro that unhides all the sheets.
In my training sessions I sometimes get asked about summing cells based on their colour. A SUMIF based on colour.
Hiding rows and columns is a common process in spreadsheets. Excel’s grouping feature can make the process easier and make it more apparent when rows or columns have been hidden.
Excel allows you to easily hide a group of sheets BUT frustratingly, it won’t let you unhide a group of sheets. You have to unhide them one sheet at a time.