Data and paperwork
Guides on data and paperwork: how to open, convert and fix problems with your files.
- How to convert Excel to PDF and combine several Excel workbooks into oneData and paperwork1 min
Convert spreadsheets to PDF, merge several Excel or CSV files into one workbook and convert between Excel, CSV and JSON without uploading your data.
- How to check the format of an RFC and a CURP before filing paperworkData and paperwork1 min
What the characters in the RFC and CURP mean, how the check digit is calculated, and what you can and can't verify without asking the authorities.