What @UshaJyothi20 suggests is that you should read the data into a data table variable using Read from Excel worksheet, which is a good idea. However, building a loop to look for the value is extremely inefficient. Especially if the actual production data you'll work with is large. Once you have read the data, you can use Find or replace in data table to find the matches. Since Read from Excel worksheet will retrieve values and not formulas, you will be able to use Find or replace in data table to actually find the value.
The result will be a data table that contains row and column indexes for the matched cells. These will be 0-based, so you will need to increment them by 1 (or by 2, if you make Read from Excel worksheet store the first row as column headers, and not part of the data itself). And they will for some reason be stored as strings, so you will need to convert them to a number using Convert text to number to use them. But once you've done that, you can process the matches easily.
-------------------------------------------------------------------------
If I have answered your question, please mark it as the preferred solution. If you like my response, please give it a Thumbs Up.
I also provide paid consultancy and development services using Power Automate. If you're interested, DM me and we can discuss it.
