Report Print Format html Customization

Hello, what is the best way to customize the html for standard reports or to create a html file for custom report script report

Please check the example of the general ledger report.

thanks a lot, i already checked this documentation could you please guide me more i will appreciate that , the issue is that let me for example say customize the html file for Account Receivable Summary checked its directory and its contain HTML file which is only contains include “{% include “accounts/report/accounts_receivable/accounts_receivable.html” %}” so here should i create a new html file ? because if i made changes on “erpnext/accounts/report/accounts_receivable_summary/accounts_receivable_summary.html” its not reflected after restart and print the report , thanks in advance
@NCP

@NCP could you check please

@ALI_ALKOUSA normally i delete the import line and copy the contents from the other file and paste here. Then edit what ever you want… Can you please share your goal?

thanks , I tried that which is good in serve my purpose which is only to make the div before table in Account Receivable summary in a better structure (not that much complicated requirements) , the issue now if I checked pick columns
image
totally not consider my new html file