ok so make sure two things
1) you have a connection to the correct excel document table
2) That the excel document has no spaces in th colum names (dont ask me why it just hates it. replace spaces with underscores maybe)
ok so the syntax is:
Patch(Table1, Defaults(Table1){a: info, b: info,.....})
Let me walk you through it.
In place of "table1" put the name of your table. e.g if your table was named "students" then it would be written as Patch(students, Defaults(students),{a: info,b: info....})
next in place of a,b and so on you put your column names EXACTLY as they are in the excel document (this is the part that hates spaces). so if i have a table in excel of 4 cells that goes group1 results teacher feedback
then the syntax is now Patch(students, Defaults(students),{group1: info,results: info,teacher: info,feedback: info).
Finally you update the info portion. This is what you want to past into the cell. so for instance Textinput1.Text, Dropdown4.Selected.Value etc. it is very important to remember the information type like .Text
So if i have an app that takes 4 text inputs that i want to write to an excel spreadsheet onselect i would write
Patch(students, Defaults(students),{group1: textinput1.Text,results: textinput2.Text,teacher: textinput3.Text,feedback: textinput1.Text)
Let me know how you get on and if you need any help 🙂