[Gretl-users] Gretl Import Error

Hello, I'm currently working on the impact of Governance (ESG) on corporate investments. Gretl keeps on giving me an error when importing a file, specifically with the name of the companies (the tickers). This is kinda weird, because when i import a very similar .xls file related to Social Data (with the same tickers) no error is given. If you could help me with this issue, i would be very thankful!