You have linked OLE Excel tables in your drawing and are having issues either going to Model Space Tab or are having other issues with your drawing once you’ve added the OLE Excel Links
This problem can be if Excel and/or AutoCAD cannot open or find the Excel Spreadsheets used or you do not have the source XLSX file
Type in OLELINKS or activate the MENUBAR (MENUBAR=1) and go to Edit => OLE Links
Click on each link showing the linked document and click the Break Link button
Repeat until this list is empty then click Close
That will leave the table data in the drawing intact but will remove the linkage back to the source XLSX file.
Save, close and reopen and see if that helps with the issue you are experiencing.
About the AuthorFollow on Linkedin More Content by Ryan Wunderlich