Chart of accounts - Ability to use a - not a in codes
Codes are set up as ***-yy which isn't logical to type. I guess it's an accounting convention but I can type 501.50 much easier (one hand on the numeric keypad and no need to move it to the'-') than 501-50.
For non-accountants, and IT people 501.50 is the logical way to type and enter these codes.

Hi Kevin, you can use symbols including '-' or '.' when setting up your chart of account codes. This applies when importing or adding a singular account within Xero. If you need any help with this I'd recommend connecting with our specialists at Xero Support who can get more information to help with your org.
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Freya Pieroz commented
What happens when you export to spreadsheet?
(also, my initial training was in IT, and if I see 501.50 my initial reaction is that it refers to the 50th part of a split archive file)
(also also, my numeric keypad on my cheap keyboard has a - on it)