Count Alpha In AlphaNumeric Text

To find the number of Alpha characters (A-Z) in a text, you could use the following formula, where A1 contains your text

=SUMPRODUCT(LEN(A1)-LEN(SUBSTITUTE(UPPER(A1),CHAR(ROW(INDIRECT("65:90" ))),"")))

https://www.youtube.com/channel/UCnxwq2aGJRbjOo_MO54oaHA
https://www.reddit.com/r/windowsxp/comments/pexq9q/comment/k81ybvj/?utm_source=reddit&utm_medium=web2x&context=3
https://www.youtube.com/watch?v=bs-urI_o8jo&lc=UgxYgiEZuS9I3xkjJv54AaABAg
https://www.youtube.com/watch?v=bs-urI_o8jo&lc=UgyBACXgNY4j_cHgH5J4AaABAg.9oTkVdzfqfm 9wlhQrYJP3M
ttps://www.youtube.com/watch?v=LP9fz2DCMBE
https://www.youtube.com/watch?v=LP9fz2DCMBE&lc=UgzbPgJUMCztIOQDym14AaABAg
https://www.youtube.com/watch?v=LP9fz2DCMBE&lc=UgzbPgJUMCztIOQDym14AaABAg. 9wdo_rWgxSH9wdpcYqrvp8
ttps://www.youtube.com/watch?v=bFxnXH4-L1A
https://www.youtube.com/watch?v=bFxnXH4-L1A&lc=UgxuODisjo6cvom7O-B4AaABAg.9w_AeS3JiK09wdi2XviwLG
https://www.youtube.com/watch?v=bFxnXH4-L1A&lc=UgxBU39bTptFznDC1PJ4AaABAg
ttps://www.youtube.com/watch?v=GqzeFYWjTxI
https://www.youtube.com/watch?v=GqzeFYWjTxI&lc=UgwJnJDJ5JT8hFvibt14AaABAg
https://www.youtube.com/channel/UCnxwq2aGJRbjOo_MO54oaHA

With a slight modification, you can also use this to count the number of numeric characters in your alphanumeric text

=SUMPRODUCT(LEN(A1)-LEN(SUBSTITUTE(UPPER(A1),CHAR(ROW(INDIRECT("48:58" ))),"")))