Convert Uneditable Textbox Content

I have an .xlsm workbook that contains a single line of text sitting inside a shape / text-box. The text shows up fine, but it can’t be clicked, selected, or altered in any way. Rather than trying to unlock... (Budget: ₹600 - ₹1500 INR, Jobs: Data Entry, Data Management, Data Processing, Excel, Excel Macros, Excel VBA)