Files with 2021 extension can be usually encountered as data files created or generated in or for the year 2020. It is possible that .2021 file might be used for some kind of tax preparation, business, calendar, tax preparation, financial, schedule data as well as backup.
2021 file extension - File saved in 2021
What is 2021 file? How to open 2021 files?
File type specification:
File extension 2021 can be for example used for an data file created or saved in 2021.
Such files are most commonly used by various tax preparation software, but might as well contain calendar, business or just be backup of some sort.
Some file names can contain two extensions (xxx.201), try to rename the file to the original extension (delete the 2021 extension from the file name).
Updated: November 7, 2023