MATLAB code error clarification

Can anyone explain the error given below

Error using xlsread (line 257)

Invoke Error, Dispatch Exception:

Source: Microsoft Excel

Description: Unable to set the DisplayAlerts property of the Application class

Help File: xlmain11.chm

Help Context ID: 0

Error in Code_Etown (line 12)

M = xlsread('main_file.xlsx','main_links');

Answer 1

[Walter Roberson]

https://www.ibm.com/support/pages/clarity-server-error-open-excel-unable-set-displayalerts-property-application-class

hints that the file you are trying to open is already open in Excel.

[Chethana Unni P]

Thank you..