How does angular communicate with backend.

Ou listened to a song on your computer. did you use hardware or software?

Which type of file can be used to import data into a spreadsheet?

Jason works as an accountant in a department store. he needs to keep a daily record of all the invoices issued by the store. which file naming convention would him the most? a)give the file a unique name b)name the file in yymmdd format c)use descriptive name while naming the files d)use capital letters while naming the file