I have created several cells. After test it is not visible. Put the font file in c:\windows\fonts folder, start word to insert the symbol by browsing the font file it is not available either.
See the image in font creator in edit mode and after test mode.
Those glyphs have no mapping so they will not show in the Font Test window or other applications.
Glyphs must be mapped to a suitable Unicode character code so that users can type them in Windows applications.