EXCEL There're two time series data in the excel. The dates are not matched due to one series has no value for some dates. How to drop the dates when any one of the series has no value and only leave with date with both values? it is used in EXCEL. I want two time series with matched dates (drop the dates don't have both values

15/07/2021 14/07/2021 13/07/2021 12/07/2021 09/07/2021 08/07/2021 07/07/2021 06/07/2021 05/07/2021 02/07/2021 01/07/2021 30/06/2021 29/06/2021 28/06/2021 25/06/2021 24/06/2021 23/06/2021 22/06/2021 21/06/2021 18/06/2021 17/06/2021 16/06/2021 15/06/2021 131.69 15/07/2021 132.11 14/07/2021 131.67 13/07/2021 133.21 12/07/2021 132.66 09/07/2021 129.56 08/07/2021 132.85 07/07/2021 133.07 06/07/2021 136.49 02/07/2021 134.16 01/07/2021 135.98 30/06/2021 133.95 29/06/2021 135.29 28/06/2021 134.67 25/06/2021 137.42 24/06/2021 136.6 23/06/2021 135.08 22/06/2021 135.29 21/06/2021 135.38 18/06/2021 134.6 17/06/2021 138.69 16/06/2021 138.16 15/06/2021 139.35 14/06/2021 859.87 14212792 21067446 865.97 12934927 21753732 883.96 14744602 22051130 903.57 17801480 22197910 872.44 18339890 23212270 860.98 19519004 23985198 854.55 20008872 24063906 873.1 23034942 23738654 898.31 16503909 23610146 897.48 16591947 23451900 898.93 23068014 23683084 900.31 17196168 23176120 907.98 23562004 23543312 894.78 50359496 23292018 902.94 28133648 21905640 879.39 24507092 22510262 841 17395870 22275960 837.4 16946316 22634798 837.22 33016872 23853448 834 29933812 25471556 826.36 20699624 26575358 819.13 15130089 26938642 837.39 21107324 27860280