HDCP = Handicap. OK, I got it now.
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- / - either is OK, you just have to make sure that Excel knows the value is a number not text.
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Question: The handicap is always going to be the same? It's not going to change over time? Then it should not be on each row, it should be in a separate table ...
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That being said, I don't how to show that value just once ... yet. I'll keep looking (I'm learning this stuff too).
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OK, a little research, I came up with this (in the example file)

EDIT: Sorry, I don't know why the Handicap is not showing the correct sign. I formatted the field to show it, but it is not showing up. I'll keep noodling on it ...
The date format is in part defined by you system long and short date/time formats. If you click in one of the dates, and go to the Home tab > Number group > you'll see it is displayed a "General" format, not date ie:

In this example I entered the date in a format that MY Excel on computer recognizes as a date, ie 2020-04-11, so Excel said
"... cool, that's a date. Just to be confusing I'll display it in the default
display format"

And to be even more annoying, MS stores dates as a "serial" number. So if in the example date I reset the date type to General, it shows the underlying value that Excel translates to display format:

Here endeth the sermon ...
Here are some general articles about how Excel handles dates:
! The truth behind Excel dates, time and durationhttps://office-watch.com/2018/truth-behind-excel-dates/****Date handling in Excel can be confusing and it’s not your fault.
Microsoft could do a better job. Here’s a quick guide to how Excel handles dates and date arithmetic with the settings you should know.
. * What you see isn’t what’s saved-----------
. * Excel date and times
. * Date and Time arithmetic--------------------
. * Displaying dates and times
. * How Windows changes Excel dates------
. * Time Duration in Excel
ET MR Dates and Times.docx.
! Use Date & Time values in Excel – a handy guidehttps://chandoo.org/wp/date-time-tips-ms-excel/
Excel date time features are very handy and knowing how to use Excel date values can help you save a ton of time in your day to day spreadsheet chores. Let us prepare for your date with the sheet using these 10 handy tips. So you
see, Date and Time are in fact numbers in Excel. Just enter a date in your excel sheet and format it as number to see its equivalent numeric value. If a date is
20-June-2018 and excel represents it as 43271. Similarly, 9PM on 20-June-2018 is represented as 43271.875
. * Test whether a date is future or past
. * Find the number of days between two dates
. * Formatting dates
. * Auto-filling only weekdays
. * Find out the day of week from a given date
. * Highlight weekends using conditional formatting
. * Adding / Subtracting dates
. * Ensuring a valid date or time is entered in a cell
. * Insert today’s date, current time using key board shortcuts
. * Top Date functions for you
. * Common problems when working with dates in Excel
.
I've collected all of the various Date/Time format codes I could find into this one place
! Custom Date / Time format codesDate CodesThe letters d, m, and y are used to represent days, months, and years in Excel date formats.
Date Mask Displays ****. d
days (1-31) without a leading zero
. dd days (01-31) with a leading zero
. ddd days (Sun-Sat) using 3-letter abbreviations
. dddd days (Sunday-Saturday) full day spelled out
. m months (1-12) without a leading zero
. mm months (01-12) with a leading zero
. mmm months (Jan-Dec) using 3-letter abbreviations
. mmmm months (January-December) full month spelled out
. mmmmm months (J-D) the first letter of the month
. yy years (00-99) last two-digits of year
. yyyy years (1900-9999) all four-digits of the year
Personally, I avoid the mmmmm format. How can you (or anyone else reading your worksheet) distinguish between January, June, and July? Between March and May? Or April and August?
Time CodesThe letters h, m, and s are used to represent hours, minutes, and seconds in Excel time formats. Additionally, you can specify elapsed time and AM or PM in a custom format -
Time Mask Displays ****. h
hours (0-23) without a leading zero
. hh hours (00-23) with a leading zero
. m minutes (0-59)
without a leading zero
. mm minutes (00-59) with a leading zero
. s seconds (0-59)
without a leading zero
. ss seconds (00-59) with a leading zero
. [h]:mm elapsed time in hours
(such as 28:30)
. [mm]:ss elapsed time in minutes
(such as 65:20)
. [ss] elapsed time in seconds (such as 90)
. ss.000 Decimal seconds to thousands
. [h]:mm:ss.000 Decimal Seconds to thousands
. h:mm AM/PM hours (such as 6:00 AM or 6:45 PM)
. h:mm A/P hours (such as 6:00 A
or 6:45 P)
NOTE - When a format contains AM or PM, the hour is based on the 12-hour clock. "AM" or "A" indicates times from midnight until noon; 12 AM is Midnight. "PM" or "P" indicates times from noon until midnight; 12 PM is Noon.
Sample Custom Date And Time CodesThese are just a few examples to give you some ideas of what is possible with custom date and time formats. To display text next to a format code, enclose the text in quotes.
CODE DISPLAYS ****. d mmm yyyy
3 Apr 2000
. mmm/dd/yyyy Apr/03/2000
. mmmm dd, yyyy (ddd) April 3, 2000 (Mon)
. hh:mm "GMT" 14:15 GMT
. [h]:mm "elapsed hrs" 28:30 elapsed hrs
. h A/P 8 A
. [blue]dd-mm-yyyy 03/04/2000
(displayed in blue)
.
! Format a date the way you want
https://support.microsoft.com/en-us/office/format-a-date-the-way-you-want-8e10019e-d5d8-47a1-ba95-db95123d273e
When you enter some text into a cell such as "2/2", Excel assumes that this is a date and formats it according to the default date setting in Control Panel. Excel might format it as "2-Feb". If you change your date setting
in Control Panel, the default date format in Excel will change accordingly. If you don’t like the default date format, you can choose another date format in Excel, such as "February 2, 2012" or "2/2/12". You can also create
your own custom format in Excel desktop.
. * Choose from a list of date formats
. * Create a custom date format
. * Tips for displaying dates
.