Dear Safik AIMunawar,
Thanks for posting in Microsoft community and sharing your troubleshoot steps.
I go through your description, since only one specific file could not be opened by the user. We think this behavior may caused by the file not the Excel client. So we recommend the following steps to you and you may check if they could provide you any help:
1.Since you could open it offline, save as a new file and rename the file, then upload it to the SharePoint to see if the user could open the file.
2.If other users could open the file, let them save the file and rename as a new file then upload to SharePoint.
3.Copy and paste the file content to a new file and upload the file to SharePoint.
Meanwhile, if we misunderstood your meaning, feel free to point out and we'll help you figure out.
Thanks for your cooperation, look forward to your reply.
Have a nice day.
Sincerely,
Sean Cai | Microsoft Community Moderator
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