Hello there!
First of all, I would like to say thank you for your patience. I'm not very good with Excel, but I'm the only one who has sufficent knowledge of it at work.
1) First of all, here is what I have:
screen shot
Column B is a serie of checkboxes created using this script: How to quickly insert multiple checkboxes in Excel?
Column C has some Text in it.
2) Now here's what I'm trying to do.
i want to use the formula presented here (How to look up a value in a list and return multiple corresponding values - Excel - Office.com) and modify it for my own purposes.
Simply put, I want the formula to create a list of everything that has been checked. Here's what I did with the formula, using my limited knowledge.
3) Here's what happens: it does not work
Seriously, I get an error right after index, but I don't understand anything that it says and cannot translate it properly since my workplace has Excel in another language.
Would you be kind enough to guide me?
First of all, I would like to say thank you for your patience. I'm not very good with Excel, but I'm the only one who has sufficent knowledge of it at work.
1) First of all, here is what I have:

screen shot
Column B is a serie of checkboxes created using this script: How to quickly insert multiple checkboxes in Excel?
Column C has some Text in it.
2) Now here's what I'm trying to do.
i want to use the formula presented here (How to look up a value in a list and return multiple corresponding values - Excel - Office.com) and modify it for my own purposes.
Simply put, I want the formula to create a list of everything that has been checked. Here's what I did with the formula, using my limited knowledge.
=IF(ISERROR(INDEX($B$2:$C$3,SMALL(IF($B$2:$B$3=TRUE,ROW($C$2:$C$3)),ROW(1:1)),2))
3) Here's what happens: it does not work
Seriously, I get an error right after index, but I don't understand anything that it says and cannot translate it properly since my workplace has Excel in another language.
Would you be kind enough to guide me?