I see the codes saved by *.chart are UTF-8 (with XML tags),
then I pasted the formula from Notepad to the Formula editor,
verify syntax,
then got syntax error (on v 6.28).
Is there a solution for this (before I re-new my license to the newest version)?
I only meant to visually check if formula is there. I did not mean to copy paste to formula editor since .chart file is more than just formula. If the formula is there you should be able to just load it normally as template using procedure described in manual: http://www.amibroker.com/guide/h_sheets.html
Just make sure that Drag-drop folder exits and the folder and files are not marked as read-only.
Alternatively send the .chart file to support for checking.