The SFC2021 application will be opened in the coming weeks. More information for Liaison Officers and their Users will be posted soon. This portal site will be updated with guides, documents, latest news and FAQs as the system develops. The SFC Support team are available for any questions you may have at ec-sfc2021-info@ec.europa.eu or via the 'Contact Us' page.
As of New Release 1.10.0, the old MS Office file formats (.doc and .xls) are no longer accepted in SFC2021 for security reasons.
Please refer to the FAQ for more details :
General - What is the document Size Limit and restrictions for file formats in SFC2021?