Calc crashed and I had to reinstall Libreoffice (latest as of this writing). Now my spreadsheet has multiline text doubling up on itself, cells not set to correct size to hold text, etc. Even the font doesn’t look as I remember Liberation Sans as looking. I appreciate any help. I have a screenshot but I’m not sure where to post it: link, picture, etc or how.
You didn’t say what operating system you have but try clicking Tools > Options > LibreOffice > View and tick the box Force Skia software rendering. Click OK and allow LibreOffice to restart. If it is OK on restart then end of problem.
Otherwise, click Help > Restart in safe mode > Continue in Safe Mode. Does LibreOffice look OK?
If so then consider backing up your user profile and then resetting it, see LibreOffice user profile - The Document Foundation Wiki
If it does not make the appearance correct then consider re-installing LibreOffice.
BTW to add a file or image, just drag it into an open comment from your file manager or click the Upload icon (up-pointing arrow 7th from left, tooltip Upload) to navigate to the file.