Excel cannot open the file '.xlsx' because the file format or file extension is not valid - ️SOLVED

I really need a help sir how to contact you

I dont have the security option

what if Everyone is already selected?

I followed but it still doesn't work

i tried it already but still can't open the file 😭😭😭😭😭😭😭😭

😢can't

A whistle doesn't work 😡

didnt help

Same issue not ise