They are called gridlines and should not be confused with borders, which you can draw around cells. Gridlines can be switched off by going to the Tools menu and picking Options and under the View tab removing the tick beside Gridlines.
They are separated by gridlines, although the gridlines can be turned off. EAch column is identified by a different letter or combination of letters.
It sounds as though you want to switch of the display of gridlines (Which don't print, by the way). Go to the Tools > Options menu and select the 'View' tab. Clear the checkmark next to 'Gridlines'.
The lines on the spreadsheet which are call gridlines shows each individual cell
Gridlines on a chart indicate values. You will see them on bar charts, column charts and others. Major gridlines show more significant values, like having a major gridline to indicate intervals of 10. So there would be on at 10, one at 20, one at 30 and so on. You can also have minor gridlines which will be thinner and could be at more frequent intervals.
You apply borders to some or all cells. Don't confuse borders with gridlines. Gridlines show the cells. A new worksheet has no borders, just gridlines. You can then put borders around whichever cells you want or just around parts of a cell, so not all 4 sides. Gridlines can be turned off to give more effect to borders.
You can create a form with MS Excel that has both horizontal and vertical gridlines, you just format the borders of the cells you want to display.
There is no single answer to that as there are different chart types and you can specify what way you want gridlines to be shown, like the gap in terms of value between them. You can also set a chart to have no gridlines.
There can be various answers to that. If you are talking about gridlines, then at its simplest, it could be a single cell. You could also have a set of data forming a table on a worksheet, as opposed to the blank areas, though they would also have vertical and horizontal gridlines. Sections bounded by horizontal gridlines are rows. Sections bounded by vertical gridlines are columns.
Most users of the fuel pump shut-off switch is near the starter button in a location where a thief would not find it. You can hear when the fuel pump switch is turned on and of course when turned off there would be no noise.
gridlines
No, it does not have an on/off switch. Why would it? Children go in the back seat.