Describes the cause and action for error messages.
cannot filter all columns
Sort & filter buttons are (suddenly) not available ...
sorting - Excel doesn't sort columns to the right ...
sorting - How to sort only part of multiple ...
sorting - My excel spreadsheet won't sort ...
How to Include All Rows for Filters in Excel | Chron.com
Why is Excel's filter not working? - Quora
Excel: How do you filter some columns (more than 1) but not ...
Not all items are displayed in the AutoFilter in Excel. How can ...
How to filter rows in MS Excel instead of columns