Tiny numbers '1' and '2' just above the select all button
What are the two tiny numbers above the Select All button in the upper left? I can't seem to get rid of them.
You have Grouped Columns in your worksheet.
Grouped rows will look like this with the numbers horizontal:
But grouping columns will make the numbers show vertical as in your image.
Clicking the numbers will expand or contract those levels of grouping.
Select all Worksheet- go to Data- select Ungroup option and choose Columns:
