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Let's say there are roman numerals in a range as below screen shot, and you can convert these Roman numerals to numbers with the Convert between Roman and Number utility as following:

1. Select the range you want to convert the Roman numerals to numbers, and then click the Kutools > Content > Convert between Roman and Number.

2. In the Convert between Roman and Number dialog box, check the Roman to Number option. See screen shot:

3. Click the Ok button or Apply button. Then you will see all Roman numerals in the selected range are converted to numbers at once.

Tip: The Apply button will apply this utility without closing the dialog box, and you can go on to apply this utility to other ranges. Click the Ok button to close the dialog box after converting.

If you need to convert numbers in a specific range to Roman numerals, you can get it done with the utility of Convert between Roman and Numbers quickly.

1. Select the specific range where you want to convert numbers to Roman numerals, and then click Kutools > Content > Convert between Roman and Number.

2. In the popping up dialog box, check the Number to roman option. See screen shot:

3. Click the Ok button or Apply button. Then you will see all numbers in the selected range are converted to Roman numerals immediately.

Tip: The Apply button will apply this utility without closing the dialog box, and you can go on to apply this utility to other ranges. Click the Ok button to close the dialog box after converting.