I found a solution based off a solution to a previous post. I’m sharing it below in case it helps someone else at some point. This accounts for some (but not all) special characters. Someone could take this if they need it, and add additional characters to exclude.
LOWER(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(
SUBSTITUTE(LOWER(“text”),“a”,""),
“b”,""),
“c”,""),
“d”,""),
“e”,""),
“f”,""),
“g”,""),
“h”,""),
“i”,""),
“j”,""),
“k”,""),
“l”,""),
“m”,""),
“n”,""),
“o”,""),
“p”,""),
“q”,""),
“r”,""),
“s”,""),
“t”,""),
“u”,""),
“v”,""),
“w”,""),
“x”,""),
“y”,""),
“z”,""),
“!”,""),
“@”,""),
“#”,""),
“$”,""),
“%”,""),
“^”,""),
“&”,""),
“*”,""),
“(”,""),
“)”,""),
“?”,""),
“,”,""),
“!”,""),
“.”,""),
“~”,""),
“’”,""),
“é”,"")
)