Hi Juhyeon LEE

Thank you for your post.

You mentioned you tried a few things to resolve your issue. What did you try already so that I dont ask you to repeat steps you may have already taken.

I also take note you mention, 

Juhyeon LEE said:

it works great with other projects, but just certain projects with Excel files.

and for this I wonder this this article could be worth looking into: https://gateway.sdl.com/apex/communityknowledge?articleName=000005039

Have a good day

Lyds

Thank you for your reply.

I have tried so far:

- reset the window layer

- erase all projects

- perfect match

- reset the user's profile

- repairing the Studio in the window's parameter

- erase the Studio and reinstall it

- reboot the computer

Have a good day

Juhyeon LEE  - if you can please send me your source and sdlxliff file?

Object reference messages happen for various reasons and i cant quite tell the full extent of your error from the screen print. 

For example if your excel is bilingual at times by moving the first sheet in the last position (if this does not work change the order of other sheets as well), save it and try to process it in Studio again. 

I am happy to try look into it to clarify for you so I can support you 

Lyds

Juhyeon LEE  - if you can please send me your source and sdlxliff file?

Object reference messages happen for various reasons and i cant quite tell the full extent of your error from the screen print. 

For example if your excel is bilingual at times by moving the first sheet in the last position (if this does not work change the order of other sheets as well), save it and try to process it in Studio again. 

I am happy to try look into it to clarify for you so I can support you 

Lyds