Google sheets is now very advanced and in many ways has capabilities above and beyond Microsoft Excel. We provide advance Google Sheets training for those who require it. The collaboration that is possible with Sheets, and the simplicity of the interface, makes it easier for many users. Microsoft files can now be stored and edited on the web interface in Google Drive. These include .docx and .xlsx files.
If there is a requirement within your role for Microsoft Excel, a licence can be organised for you, please reach out to the IT team.