Hi @Ravi, to check whether a string is present in a data table or not, you need to use ReadRange activity to read your excel file and store its output in a data table.Then use ForEachRow activity to read each row of the data table and use If activity to put the condition for matching the string.
Use .Contains function to check whether the string is present or not. If the string is present, display the row of data table where its present using Message Box activity: