Some websites that offer free Excel skill tests include Skills-assessment.net, WizIQ.com and Isograd.com. Visitors can access and complete the tests anytime without creating a user account.
Isograd.com offers the test for Excel 2007, 2010 and 2013 in English and French. The test focuses on different areas, including software environment, functions, formatting and data management.
WizIQ.com provides tests for both basic and advanced Excel. Additionally, visitors can create their own tests and invite their contacts to take it.
Skills-assessment.net has Microsoft Excel tests for 2007, 2010 and 2013. The site also allows visitors to create an account and book a block of Excel tests.