Update OS on MacBook Air early 2015
My system:
MacBook Air 13 inch early 2015
OS Mojave 10.14.6
Excel for Mac 2011 version 14.7.7
On occasion I receive notification to update the Mojave OS. AS you probably aware many newer OS do not support the Excel version installed. I have no need to update Excel. Now I see Apple offering OS Big Sur 11.01 - 12.18GB
I ask will this OS support Excel for Mac 2011? If not what are my options at minimum expense to continue using Excel 2011. I do not use Microsoft Word. Word processor in use is Pages.
Thank you for assistance to help with modernization.
MacBook Air 13″, macOS 10.14