I have a table with over 1,000 records with the field description
on the format below

BM146
SLV640HF
SLV660HF
SLV676
SLV676UC
SLV686HF
SLV696HF
SLV696UC

I would like to space between numbers and letters

BM 146
SLV 640 HF
SLV 660 HF
SLV 676
SLV 676 UC
SLV 686 HF
SLV 696 HF
SLV 696 UC

Note that it's hard because some has three letter as prefix
and other have two letters. Other has sufix and not

TIA

Moises