The solution is as follows:

Open excel, press ctrl+F to open the search, enter the content to be queried, and click "Search All". At this time, it is found that the data unit is found as long as it contains Keyword content, but all we need is the keyword, click "Options". Check "Cell Match" and select "Find All" again. Query specific cell formats, for example: red marked content. Still open "Select format from cells" in the "Find and Replace" selection format. At this time, the mouse will change to the format brush style, click on the red area. The format will be automatically recognized and previewed. Click "Find All" to find all content formatted in red.