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HI GUYS HOW DO YOU DO I HAVE DESIGNED THIS LISP TO HELP IN QUANTITY SURVEYING I HOPE IT IS USEFUL FOR YOU DOWNLOAD FROM HERE http://www.mediafire.com/file/594etbspmu7az0c/POLYLINES_AREAS_%2C_PERIMETER_%2C_VOLUME.rar AND THIS IS HOW CAN YOU USE IT https://www.youtube.com/watch?v=9485Qnc6rk8&feature=youtu.be THANK YOU

hard to tell without sample from your lisp and your excel workbook. You could try to find out if saving works at all (if (vl-catch-all-error-p (setq err (vl-catch-all-apply 'vlax-invoke-method (list wbk "Save")))) (prompt (strcat "\nError: " (vl-catch-all-error-message err)))) make sure you are saving the workbook and not just the active sheet maybe this is a good read : https://forums.autodesk.com/t5/visual-lisp-autolisp-and-general/save-and-close-excel-worksheet/td-p/864033 there a many excel posts on this forum (Bigal even wants to give them their own seperate forum ) GetExcel.lsp

(vl-catch-all-apply 'vlax-invoke-method (list wbk "Save"))) ?