Used an Excel feature that is not fully supported in Excel co-authoring yet.

Edited from one-time purchase or older version of Excel.

What if Show Changes is empty, but you know there have been alterations? There are a few possibilities, says Microsoft. Opening the workbook in Excel 2019 or older versions of Excel not only won’t save changes made, it will clear the Show Changes listing for everyone! Empty Show Changes Excel 365 mobile apps for iPhone, iPad and Android.Latest Excel 365 programs for Windows and Mac.Show Changes will show any alterations made in the current versions of Excel namely: Excel 2019 and older Excel’s hurt Show Changes To see older changes, Microsoft recommends using Version History (available in OneDrive and SharePoint) to open earlier versions of the workbook. There’s an unstated limit on how many changes are visible in Show Changes.

A text search would allow users to find any string in the current/previous entries, for example to find an invalid parameter or label. Wish List: searching by user name and a plain text search would be nice. The side-pane will appear showing only the changes for the selected cells.

Excel 2021 online