for renaming a file you can use tFileCopy and set the checkboxes for rename and delete source. in the textfield for the filename you can use a variable you have filled before with the content of your cell from the excelfile.
Haven't tried but you may use a tFileInputExcel, define a schema, limit to 1 row in the basic settings. Use a tSetGlobalVar to put the desired column in the global vars. Access the first column like row1.firstColumnNameInSchema