Do some Excel Work

I need an additional variable created within a main data file in Excel sheet based on a data present in 4 different sheets of a second/another clients. Say the new variable should have a value of 1 if the data in the main excel file is matched by variables in relevant columns (say variable 5, 6 and 7) and 3 columns of data in two sheets of the second excel file. The variable should have 0 if the columns in main excel file matches to the rest of sheets in second excel file. Say my data contains in first file are: date id school_name village_name school_code etc. I have second file containing 4 sheet divided into different groups of schools from the main files following a criteria like if the main data contain same school_name, village_name and school_code to any two of the sheets, it should have a value of 1 and otherwise the rest of the observations in main files for the same variables should have a corresponding value of 0 in the new variable when matched to the next two sheets in the second file. If you can do this in next 2 hours, I will hire you in minutes and give you 20USD. Lets do it and discuss it.