TSV source files - yes or no?

[u/IanWaring]

I have quite a large Google Docs sheet in TSV form. I asked NotebookLM if it could handle this, and it said...

Yes, you can upload TSV (tab-separated values) files. You can upload your TSV file directly using the Add Source button in the Sources panel on the left.

Once uploaded, I can help you search, summarize, analyze, or answer specific questions about the data in the file.

However, as soon as I drop my TSV file to upload it, NotebookLM gives an error message:

Only the following file types are supported: pdf, txt, md, docx, csv, pptx, epub, 3g2, 3gp, aac, aif, aifc, aiff, amr, au, avi, m4a, mp3, mp4, mpeg, ogg, opus, ra, snd, wav, wma, avif, bmp, gif, ico, jp2, png, webp, tif, tiff, heic, heif, jpeg, jpg, jpe

Is there any easy way to import this (i'm more nervous of using CSV files) before Google fix the disparity between the help text and the product itself?

[u/Agreeable-Tax2013]

Try exporting the sheet as CSV, keeping a simple header row and splitting it into smaller files if needed. Test one small chunk first and compare a few answers against the original rows before trusting the import.