In order to load from Excel into SQL Server, you should have Bulk_admin database role rights on your ID with Insert permission on database.
you can use the below script to load data into sql server after that,
/** STEP 1 - CREATE TABLE **/ -- You need to create the table before inserting data with the columns mentioned in your excel
CREATE TABLE Load_Table(cust_no integer, cust_name varchar(20) )
/** STEP 2 - BULK INSERT **/
BULK INSERT Load_table FROM 'FIle_location\file_name.xls' WITH (FIRSTROW = 2, FIELDTERMINATOR =',', ROWTERMINATOR ='')