Details for importing data from spreadsheets are covered in Preparing, Using and Exporting Data. It is also possible to directly get data from a spreadsheet using the GET 123 DATA, GET XLS DATA and GET DIRECT DATA functions, or ODBC. For example, the equation
sales data := GET XLS DATA('ourstore.xls','sales','1','B5')
tells Vensim to look to the Excel file ourstore.xls on the tab labeled sales. Vensim will read values for Time from row 1 and get values for sales data starting in cell B5 (from the 5th row starting in the second column).