How do I split a large CSV file into smaller parts for import into Zoho?

How do I split a large CSV file into smaller parts for import into Zoho?

Hi everyone,
I’m trying to upload a CSV file into Zoho, but the file is very large (millions of rows), and Zoho keeps giving me errors or takes forever to process. I think the file size is too big for a single import. Manually breaking the CSV into smaller files is time-consuming and not practical for me.

Is there any simple way or tool to split a large CSV file into smaller, manageable chunks so I can upload them into Zoho without errors?


      Zoho Campaigns Resources


        • Desk Community Learning Series


        • Digest


        • Functions


        • Meetups


        • Kbase


        • Resources


        • Glossary


        • Desk Marketplace


        • MVP Corner


        • Word of the Day


        • Ask the Experts


          Zoho CRM Plus Resources

            Zoho Books Resources


              Zoho Subscriptions Resources

                Zoho Projects Resources


                  Zoho Sprints Resources


                    Zoho Orchestly Resources


                      Zoho Creator Resources


                        Zoho WorkDrive Resources



                          Zoho CRM Resources

                          • CRM Community Learning Series

                            CRM Community Learning Series


                          • Tips

                            Tips

                          • Functions

                            Functions

                          • Meetups

                            Meetups

                          • Kbase

                            Kbase

                          • Resources

                            Resources

                          • Digest

                            Digest

                          • CRM Marketplace

                            CRM Marketplace

                          • MVP Corner

                            MVP Corner




                            Zoho Writer Writer

                            Get Started. Write Away!

                            Writer is a powerful online word processor, designed for collaborative work.

                              Zoho CRM コンテンツ





                                ご検討中の方

                                  • Recent Topics

                                  • lead convert between modules

                                    Hello, The workflow we set up to automatically transfer leads registered via Zapier into the Patients module to the Leads module started to malfunction unexpectedly on September 25, 2025, at 11:00 AM. Under normal circumstances, all fields filled in the

                                  • Flow Task Limits - How to Monitor, Understand Consumption?

                                    So, I got an email last night saying that I've exhausted 70% of my tasks for this month, and encouraging me to buy more tasks. I started to dig into this, and I cannot for the life of me figure out where to find any useful information for understanding,

                                  • Cross References Do Not Update Correctly

                                    I am using cross references to reference Figures and current am just using the label and number, i.e. Figure #. As seen here: When I need to update the field, I use the update field button. But it will change the cross reference to no longer only including

                                  • Manage control over Microsoft Office 365 integrations with profile-based sync permissions

                                    Greetings all, Previously, all users in Zoho CRM had access to enable Microsoft integrations (Calendar, Contacts, and Tasks) in their accounts, regardless of their profile type. Users with an administrator profile can now manage profile-based permissions

                                  • Zoho Desk KB article embedded on another site.

                                    We embed KB articles from Zoho Desk on another site (our application). When opening the article in a new tab, there is no issue, but if we choose lightbox, we are getting an error "To protect your security, help.ourdomain.com will not allow Firefox to

                                  • How to Track and Manage Schedule Changes in Zoho Projects

                                    Keeping projects on track requires meticulous planning. However, unforeseen circumstances can cause changes to schedules, leading to delays. It becomes important to capture the reason for such changes to avoid them in the future. Zoho Projects acknowledges

                                  • Is there a notification API when a new note is addeding

                                    Trying to push to Cliq, or email notification when there's a new note added in module. How to implement this?

                                  • Zoho Sheet - Desktop App or Offline

                                    Since Zoho Docs is now available as a desktop app and offline, when is a realistic ETA for Sheet to have the same functionality?I am surprised this was not laucned at the same time as Docs.

                                  • Collaborate Feature doesn't work

                                    Hello Team. It seems that the collaborate section is broken? I can post something but it all appears in "Discussions". In there is no way how I would mark something as Draft, Approval, post or any of the other filter categories? Also if I draft a post

                                  • Edit Permission during and after approval?

                                    When a record is sent for approval Can a user request for edit permission from the approver? We don't want to give edit permissions for all the records under approval Only on a case-by-case basis How can we achieve this?

                                  • Zoho web and mobile application not workingn

                                    Both zoho forms web and mobile application aren't working. I have checked my network connections and they are fine.

                                  • Introducing the revamped What's New page

                                    Hello everyone! We're happy to announce that Zoho Campaigns' What's New page has undergone a complete revamp. We've bid the old page adieu after a long time and have introduced a new, sleeker-looking page. Without further ado, let's dive into the main

                                  • Prevent stripping of custom CSS when creating an email template?

                                    Anyone have a workaround for this? Zoho really needs to hire new designers - templates are terrible. A custom template has been created, but every time we try to use it, it strips out all the CSS from the head.  IE, we'll define the styles right in the <head> (simple example below) and everything gets stripped (initially, it saves fine, but when you browse away and come back to the template, all the custom css is removed). <style type="text/css"> .footerContent a{display:block !important;} </style>

                                  • Bulk Moving Images into Folders in the Library

                                    I can't seem to select multiple images to move into a folder in order to clean up my image library and organize it. Instead, I have to move each individual image into the folder and sometimes it takes MULTIPLE tries to get it to go in there. Am I missing

                                  • Zoho Campaigns - Why do contacts have owners?

                                    When searching for contacts in Zoho Campaigns I am sometimes caught out when I don't select the filter option "Inactive users". So it appears that I have some contacts missing, until I realise that I need to select that option. Campaigns Support have

                                  • Latest updates in Zoho Meeting | Breakout rooms and End to end encryption

                                    Hello everyone, We’re excited to share a few updates for Zoho Meeting. Here's what we've been working on lately: Introducing Breakout Rooms for enhanced collaboration in your online meetings and End-to-end encryption to ensure that the data is encrypted

                                  • Systematic SPF alignment issues with Zoho subdomains

                                    Analysis Period: August 19 - September 1, 2025 PROBLEM SUMMARY Multiple Zoho services are causing systematic SPF authentication failures in DMARC reports from major email providers (Google, Microsoft, Zoho). While emails are successfully delivered due

                                  • Accidentally deleted a meeting recording -- can it be recovered?

                                    Hi, I accidentally deleted the recording for a meeting I had today. Is there a way I can recover it?

                                  • To Zoho customers and partners: how do you use Linked Workspaces?

                                    Hello, I'm exploring how we can set up and use Linked Workspaces and would like to hear from customers and partners about your use cases and experience with them. I have a Zoho ticket open, because my workspace creation fails. In the meantime, how is

                                  • Upcoming Changes to the Timesheet Module

                                    The Timesheet module will undergo a significant change in the upcoming weeks. To start with, we will be renaming Timesheet module to Time Logs. This update will go live early next week. Significance of this change This change will facilitate our next

                                  • How to access email templates using Desk API?

                                    Trying to send an email to the customer associated to the ticket for an after hours notification and can't find the API endpoint to grab the email template. Found an example stating it should be: "https://desk.zoho.com/api/v1/emailtemplates/" + templateID;

                                  • Attachment is not included in e-mails sent through Wordpress

                                    I have a Wordpress site with Zeptomail Wordpress plugin installed and configured. E-mails are sent ok through Zeptomail but without the included attachment (.pdf file) Zeptomail is used to send tickets to customers through Zeptomail. E-Mails are generated

                                  • How to render either thumbnail_url or preview_url or preview_data_url

                                    I get 401 Unauthorised when using these urls in the <img> tag src attribute. Guide me on how to use them!

                                  • Update Portal User Name using Deluge?

                                    Hey everyone. I have a basic intake form that gathers some general information. Our team then has a consultation with the person. If the person wants to move forward, the team pushes a CRM button that adds the user to a creator portal. That process is

                                  • Zoho Bookings No Sync with Outlook

                                    Zoho Bookings appointments are showing on my Outlook Calendar but Outlook events are not showing on Zoho Bookings. How do I fix this?

                                  • Unable to retrieve Contact_Name field contents using Web API in javascript function

                                    Hello, I've added a field in the Purchase Order form to select and associate a Sales Order (Orden_de_venta, lookup field). I've also created a client script to complete some fields from the Sales Order (and the Quote), when the user specifies the related

                                  • Updating Woocommerce Variation Products Prices Via Zoho CRM

                                    I can update product prices with this flow: But I can't update variant products. I got a code from Zoho for this, but I couldn't get it to work. It needs to find the product in the CRM from the SKU field and update the variation with the price there.

                                  • Placing a condition before converting the LEAD

                                    Hi,  I need some assistance with Lead conversion. I need to place certain conditions before allowing the user to convert the lead.  For example: up until the certain status's doesn't equal "green" don't allow to convert lead.  I tried creating this using

                                  • Emails Disappearing From Inbox

                                    I am experiencing the unnerving problem of having some of the messages in my inbox just disappear.  It seems to happen to messages that have been in there for longer than a certain amount of time (not sure how long exactly). They are usually messages that I have flagged and know I need to act on, but have not gotten around to doing so yet.  I leave them in my inbox so I will see them and be reminded that I still need to do something about them, but at least twice now I have opened my inbox and found

                                  • Power of Automation :: Automatic removal of project users once the project status is changed.

                                    A custom function is a software code that can be used to automate a process and this allows you to automate a notification, call a webhook, or perform logic immediately after a workflow rule is triggered. This feature helps to automate complex tasks and

                                  • Customizing Form Questions per Recipient Group in Zoho Campaigns/Forms

                                    Hello everyone, I would like to ask if it’s possible in Zoho Campaigns or Zoho Forms to send out a campaign where the form questions can be customized based on the group of recipients. Use case example: I have prepared 20 questionnaire questions. For

                                  • Zoho Books - France

                                    L’équipe de Zoho France reçoit régulièrement des questions sur la conformité de ses applications de finances (Zoho Books/ Zoho Invoice) pour le marché français. Voici quelques points pour clarifier la question : Zoho Books est un logiciel de comptabilité

                                  • Every time an event is updated, all participants receive an update email. How can I deactivate this?

                                    Every time an event is updated in Zoho CRM (e.g. change description, link to Lead) every participant of this meeting gets an update email. Another customer noticed this problem years ago in the Japanese community: https://help.zoho.com/portal/ja/community/topic/any-time-an-event-is-updated-on-zohocrm-calendar-it-sends-multiple-invites-to-the-participants-how-do-i-stop-that-from-happening

                                  • Forms - Notification When Response Submitted

                                    How do I set it up to generate an email notification when a response (class request) is submitted?

                                  • how to use validation rules in subform

                                    Is it possible to use validation rules for subforms? I tried the following code: entityMap = crmAPIRequest.toMap().get("record"); sum = 0; direct_billing = entityMap.get("direct_billing_details"); response = Map(); for each i in direct_billing { if(i.get("type")

                                  • Notes Issues

                                    Been having issues with Notes in the CRM. Yesterday it wasn't showing the notes, but it got resolved after a few minutes., Now I have been having a hard time saving notes the whole day. Notes can't be saved by the save button. it's grayed out or not grayed

                                  • How to disable user entry on Answer Bot in Zobot

                                    Hi, I have an Answer Bot in my Zobot, here is the configuration: I only want the user to choose 1 of the 4 the options I have provided: When no answer found, user chooses 'I'll rephrase the question' or 'Ask a different question When answer is found,

                                  • More admin control over user profiles

                                    It's important for our company, and I'm sure many others, to keep our users inline with our branding and professional appearance. It would be useful for administrators to have more control over profile aspects such as: Profile image User names Email signatures

                                  • Please Make Zoho CRM Cadences Flexible: Allow Inserting and Reordering Follow-Up Steps

                                    Sales processes are not static. We test, learn, and adapt as customers respond differently than expected. Right now, Zoho Cadences do not support inserting a new step between existing follow-ups or changing the type of an existing primary step. If I realize

                                  • Changing the Default Search Criteria for Finding Duplicates

                                    Hey everyone, is it possible to adjust the default search criteria for finding and merging duplicate records? Right now, CRM uses some (in my opinion nonsensical) fields as search criteria for duplicate records which do nothing except dilute the results.

                                  • Next Page