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To remove one character from the end of a specific range of text, you can use the string slicing method in most programming languages. Here's an example in Python:
text = "Hello, World!"
start = 7 # index of the first character in the range
end = 13 # index of the last character in the range
updated_text = text[:end-1] + text[end:] # remove the last character in the range
print(updated_text) # output: Hello, Word!
In this example, we remove the character at index 13 (which is the end index of the range) by creating a new string that includes all characters before the end index (i.e., text[:12]) and all characters after the end index (i.e., text[13:]). The result is a new string without the character we wanted to remove.