Find two highest values and index (even value is the same)

[diilmac]

Hello

I tried many combinations of formulas but every time first and second highest value is the same im getting first key for both.

DATA

#	A	B	C
1	1	USER1	8
2	2	USER1	8
3	3	USER1	4
4	4	USER2	5

<tbody>
</tbody>

Display

#	A	B
1	[find key [DATA A:A] of first highest value [DATA C:C] based on [Display B3]	USER1
2	[find key [DATA A:A] of second highest value(even is the same as first one) [DATA C:C] based on [Display B3]	USER1

<tbody>
</tbody>

 

[AhoyNC]

Try:
Copy formulas down as needed.

Excel Workbook
	A	B	C
1	1	USER1	8
2	2	USER1	8
3	3	USER1	4
4	4	USER2	5
5
6
7
8
9	1	USER1
10	2	USER1
Sheet

 

[AhoyNC]

In my post above formula in A9 doesn't need to be enter as an array (just ENTER will work).

 

[diilmac]

Thank you AhoyNC for quick answer, but this is not exactly what Im looking for.
Let me explain one more time

	A	B	C
1	1	USER1	8
2	2	USER1	8
3	3	USER1	4
4	4	USER2	5
5	5	USER3	1
6	6	USER2	3
7	7	USER4	7
8	8	USER3	9
9	9	USER4	2
10	10	USER2	11
11	11	USER3	12
12
13	[key (A column) of first highest value (C column) based on B13]	USER1
14	[key (A column) of second highest value (C column) based on B14]	USER1
15	[key (A column) of first highest value (C column) based on B15]	USER2
16	[key (A column) of second highest value (C column) based on B16]	USER2
17	[key (A column) of first highest value (C column) based on B17]	USER3
18	[key (A column) of first highest value (C column) based on B18]	USER3

<tbody>
</tbody>

Basically I need to find only key, B13:B18 will be fixed value

 

[AhoyNC]

Try:
This is an array formula that must be entered with CTRL-SHIFT-ENTER. Drag formula down as needed.

Excel Workbook
	A	B	C
1	1	USER1	8
2	2	USER1	8
3	3	USER1	4
4	4	USER2	5
5	5	USER3	1
6	6	USER2	3
7	7	USER4	7
8	8	USER3	9
9	9	USER4	2
10	10	USER2	11
11	11	USER3	12
12
13		USER1	1
14		USER1	2
15		USER2	10
16		USER2	4
17		USER3	11
18		USER3	8
Sheet

 

[diilmac]

This is exactly what I need, Thank you so much AhoyNC