Excel Suddenly slow saving

Excel saving slowly can happen due to a large workbook, network connection issues, add-ins, or formulas that need extra processing during saving.

Since the issue disappears when the file is moved to a local drive, the network connection or server location may be the cause. Try:

• Copy the workbook to a local drive and test saving.
• Check network latency and permissions on the shared folder.
• Remove or disable unnecessary add-ins.
• Check for corrupted formulas, hidden data, or excessive formatting.
• Create a copy of the workbook and use Save As to a new file.
• Update Office and check if the issue happens with a new template.

Because only one template has the problem, compare it with the working template to find differences in formulas, connections, or hidden data.